The children used in the JAG characters play a significant role in understanding the series sub-plots. I haven't listed all of them because not all screen captures have been possible but I have tried to include those of significance. [I decided to include this category late in my gathering of JAG episode data - so they are less complete. More are added as I obtain them.
Major Cast's Childhood
Sam Fickman as Young Harmon Rabb Jr.
Harm remembers taking a "tiger cruise" with his father and sitting in a jet marked with the call sign "Hammer." Also the Navy men comming up the steps to tell his mother that his dad was MIA. His dad's audio tapes helped him remember his father, and later gave clues that helped Harm locate a "list of names" of POWs taken to Russia by the KGB."
David James Elliot as 13 year old Harm
According to the story line, Harm's mother had videotaped him at a school dance when he was 13 years old. She had saved
the film and sent it to him at his request when he needed to placate his possessive girlfriend. Renee had complained many times
about never "knowing" Harm so he finally showed this film to her.
Evan Acosta as 16 year old Harm
(in deja Vu) At 16 Harm went to Vietnam on his own to try and find his father. He met "Striker" with whom he searched in vain. Although he didn't find his father, the trip to Vietman, for good and bad, was to have a profound effect on Harms later life.
Alexandra Kyle as Young Meg
Meg remembers her father as a kind and honorable man and who had a close friend "Ollie" who would be a meaningful figure in her own life. While having an adult near-death experience, Meg took a horseback ride with her father in her "vision" as a young girl. He explained that she couldn't come with him "now" prior to her regaining consciousness.
Alia Shawkat as Young Mac
Shown during Mac's flashbacks of her early life listening to the abuse of her mother Deanna by her father Joseph. After being threatened with a knife her mother abandoned the family leaving Mac with her father until she too ran away to live with her uncle who helped her "dry out" in the deserts of Arizona.
Major Cast's Children
Hallee Hirsh as Mattie Grace Johnson
Harms' ward. Owner of Grace Aviation where Harm got a job as a crop duster. Estranged from her alcoholic father Tom Johnson after her mother was killed in an automobile accident where he was driving. Harm petitioned for guardianship but she reconciled with her father and went back to him. She was injured while taking a flying lesson.
Mae Whitman as Chloe Madison
Although Mac considers her an adopted daughter she was assigned to Mac through the "little sister" program needing "strong handling. Her father is deployed overseas, mother deceased and she lives with her grandparents in the country. She is caring for Mac's drug sniffing dog. Mac used a psychic vision to locate her after being thrown from her horse.
Un-credited as Baby AJ Roberts
First infant son of Bud and Harriet Roberts who was named after the person who had most influenced their lives Admiral Albert Jethro Chegwidden. He was born at JAG headquarters due to Ht going into abnormal labor and delivered on the floor of Admiral Chegwidden by the Admiral himself. He was christened by the Navy chief of chaplains.
Matthew Michael Josten as A.J. Roberts
First child of Harriet and Bud Roberts named after Admiral A.J. Chegwidden (Albert Jethro). Had "vision" of his dad coming home when he was injured in a land mine explosion. He ran away from his uncle Mikey when he was upset over being "displaced" by their second child.
Uncredited as James Kirk Roberts
Son named by Bud (without the realization of Harriet) after Captain James Kirk of the Starship Enterprise. Kirk is Gaelic meaning "circle without end." Bud told her that the name was "historic and masculine." Everyone, except Harm who was helping the CIA save the Phillipine government, attended his christening.
Un-credited as Baby Girl & Boy Roberts
Bud and Harriet Roberts' latest twin children. They had an open house to introduce the children to Buds work friends who hadn't seen them due to Harriet's departure from JAG.
Danneel Harris as Cameron "Cammie" Cresswell
She is strong willed, self-centered, forward and aggressive. She has entered the Military academy and resents her father's continual pressure. She is not above cheating to win (at least in paintball.)
Supporting Cast: Recurring
Michael Bellisario as Mikey Roberts
Brother of Bud and son of "Big" Bud Roberts who physically abused him. He excelled at the Naval Academy & became an avid paintballer. Met and fell in love with Admiral Creswell's daughter Cammie.
Sean Murray as Danny Walden
The son of Admiral Chegwidden's Urologist friend Dr. Sydney Walden. Danny stole the Admirals car, was convicted of drug dealing & sentenced to military duty. He was the deliberate cause of the admirals breakup with his mother.
Aysia Polk as Annie and Dar-Lin Lewis
Twin girls living with assorted relatives and abused by CPO Charlie Lynch. Dar-Lin escaped when they moved then lived in their old house until H found her while he was searching for Annie's brutal killer (Lynch.)
Will Rothaar as Josh Pendry
Josh is the son of Harms deceased pilot friend and roommate, Jack Pendry, and Annie, who Harm had always secretly loved. Having lost his own father while still a child, Harm identified with Josh. While dating Josh's mother, Harm took Josh on a "Tiger Cruise" without telling his mother. Harm hasn't seen him since his mother got angry after the cruise. Josh played major roles in at least three episodes and had the most time "on screen" of all the child actors (except, perhaps Mikey).
Courtney Mun as Lilyana Escamilla
Girl who's mother worked in the US embassy and who Mac befriended during an investigation. Tienna helped everyone escape from the embassy when it was being stormed by insurgents and was injured. After the evacuation Mac flew back to find her then gave her a military medal.
Supporting Cast: Single show
Sam Gilfaldi as Marty Bauwer
Living with his mother and step father he was "watched over" by his mentally unstable, former SEAL, homeless father. He needed to testify at his fathers trial for killing convenience store robbers/killers to his protection despite still not being told who his father was.
Justin Garms as Trevor Anderson
13 year old boy with a "psychic link" to a childhood and marine buddy of his fathers who needed to be taken to his cabin in order to fulfill his fathers promise.
Un-credited as Jimmy Nevins (Barnes)
The son of IRA member Lorcan Barnes (the Ghost) and Lt Linda Nevins (daughter of Admiral Nevins of SINC-PAC). He was kidnapped by a rogue inspector for the Royal Ulster Constabulary as a pawn trying to draw out his father. He was rescued by Harm and Mac before being killed by the rogue Constabulary.
Un-credited as Brian Yarrow
The nephew of fugitive separatist militia member Toobin. He was killed when caught in a manipulated trap for his brother by a SEAL on training.
Un-credited as Sarabeth and Lisa Frankl
Children of gunnery sergeant Frankl who was charged by his wife with "fraternizing" with a female helicopter pilot Sandra Gilbert.
Sally Livingstone as Amy Yarrow
A niece of Toobin, a fugitive separatist. Her brother Brian was killed in a SEAL training exercise. She had to restrain her father from shooting Capt Rivers who he thought had killed her brother.
Cassandra Ray as Kim Douglas
The daughter of Lt. Cmdr. Murray Douglas a navy F14 Tomcat pilot who was kidnapped in order to blackmail her father into stealing a jet and shooting down an Arab leader.
Zach Bostrom as Walter Evans
Son of Sgt Maj Silers Evans killed in Afghanistan when Walter was only 13. He became obsessed with becoming a Marine, became sullen reclusive and lost friends. At 16 he ran away. "Amber alert" placed for him. Falsified papers and joined marines. A friend of his fathers (a General) called in JAG, awarded him an "Honorary Marine" certificate then ordered him home with his mother.
Un-credited as "Gar" Hochausen
The son of Capt Gary Hochausen, Harm's mentor, who falsified his vision tests in order to keep flying when he was getting presbyopia. He caused an accident which killed two civilians but wouldn't admit it. Harm had to trip him up with an altered eye chart on the stand.
Un-credited as Nabil
A middle eastern orphan who overheard the Sheik talk about blowing up a man who was later erroneously charged in the deaths of all the reservists from one town in Okalahoma except one. His information helped Mac capture the real terrorist.
Bobby Coleman as Donovan Pardee
The son of Cliff Pardee (the brother of a soldier killed in an explosion in Afghanistan along with all the reservists from an entire Oklahoma town.) His information helped Harm & Bud solve a case of arson.
Un-credited as Dugan Children
Children of marine Dugan who videotaped a recon mission where 3 US engineers working for SadDAM Hussain found dead from Sarin nerve gas. He kept a bootleg copy and his wife sold it to Norman Delaporte, a corrupt ZNN reporter, because she needed money.
Un-credited as Italian Children
Two children stealing money from a fountain in Italy. Chegwidden spoke to them in Italian explaining that stealing wishes will stunt their growths. When they didn't seem to believe him he asked, "why would I lie to you?" Chasing them away kept them from being in the middle of terrorist activities.
Un-credited as Baby "Mac"
Baby born to a screaming woman during a terrorist takeover of her hospital and delivered by Harm in between saving hostages & killing the terrorists. The baby didn't seem to like the name "Harmon Walter" the first names of those helping in delivery so Sara MacKenzie suggested "Mac" which he took to.
Un-credited as Sean Wetzl
Son of marine tank driver Daryl Wetzl and druggie mother Marie. When his mother got sole custody due to lack of evidence against her his father took him for a ride in a tank until Harm stood it down. Lives with Grandma Beatrice "Bea" Green because Harm found drug evidence and father in jail.
Troian Bellisario as Erin Terry
Daughter of the XO aboard the USS Stockdale where she was captured by terrorists who took over the ship during a "Tiger Cruise."
Un-credited as Members of Tiger Cruise
Members of the Tiger cruise aboard the USS Stockdale who were held hostage by terrorists trying to shoot Fidel Castro with a missile.
Un-credited as Dick and Brent Klee
Children of Jane Klee a sailor who MC Sullivan had sex with in exchange for favors. Then when she complained to Capt Ross she was offered a substantial promotion away from ship by Capt Ross (who Sullivan was also blackmailing).
Cadets at Iron Forge Naval Academy
Judd Trichter as Billy Tompkins, Joanna Canton as Luisa Vasquez & Brian Gross as Steve Corcoran, military school cadets "re-trying" a 10 year old murder case of Greg Riordan in their law class. The case about retribution for hazing was mirrored in cadets lives as Corcoran hazed Tompkins. Riordan shown to have been innocent.
Brian Vickers as Greg Riordan
Son of Kimberly Saunders and Greg Riordan, a gunners mate found guilty of 29 counts of 1st degree murder/suicide as "retribution" for the hazing given by Michael Saunders and others. A "retrial" in a military school moot court proved his innocence.
Antonia DeNardo as Arianna Restivo
The Italian daughter of a pilot who took her fathers homemade airplane without permission to practice and caused an F14 to take evasive maneuvers to avoid hitting her and in so doing collided with a helicopter killing six.
Caitlin Meyer & McKay Giller as Children of Commander Phil Zuzello
The Zuzello children who said goodbye to their father being taken off life support due to severe brain damage from hypoxia. It was inflicted at the hand of his pilot friend Sam Albrecht whom he had discovered to have vertigo which would end his flying career if it was revealed.
Bobby Edner as Tommy Akers
Son of GSgt. Akers who shot and killed his drunken mother after she slashed him with a butcher knife when he asked her not to drink. His marine father staged events to look like he had killed her instead of the boy so Tommy wouldn't go through life thinking he killed his mother. He was court-martialed for doing so & Tommy nearly lost his father too.
Aymara de Llano as Reynalda Montilla
Cuban girl found adrift off coast of Cuba and rescued. Harm needed to intervene with the captain of the ship who was determined to take her to US and met with Castro in the process.
Un-credited as young Peter Waller (in photo)
The stepson of Cdr Amanda Waller, captain of USS Gillcrest, who became angry and alienated after his father died and eventually became a serial killer stalking the journey of his stepmothers ship.
Un-credited as Iraqui boy
Iraqi boy who acted as a stool pigeon and directed insurgents to a military patrol. The firefight left senior DOD advisor Dwight Kanin dead and a marine court-martialed for "letting" it happen.
Un-credited as Abused boy
A boy whose abusive father was beaten up by an ex-sailor when he was caught hitting the boy. After watching the ex-sailor save him from the beating he asked "why did you hit my dad?"
Un-credited as Gym
Harms first "love." The 16 year old daughter of a woman friend of Stryker who Harm met when he ran away to look for his father in Vietnam. She and her mother were killed during their trip into Laos.
as Victor Loveless
A scout who was a witness for Bud's case against a master chief charged with "conduct unbecoming" when he swore like a banshee in front of his scout troop.
Un-credited as Rick Stoechler children
The children of Rick Stoechler, a cryptanalyst who was assassinated in a secure vault by Chinese who were protecting their informant. Webb set Stoechler up as a traitor to protect his dis-information program but Harm broke the case open.
Ashley Drane as Lisa Rossbach
The goddaughter of Admiral Chegwidden who ran away from her aunts where she was staying while her mother, Merrill, a ship's captain, was deployed. She came to stay with Chegwidden and was rude and abusive when she didn't get her own way.
Grace Fulton as Katelyn Maat
An abused daughter of Seth Maat, an angry lawyer, and Petty Officer Maat. Her father was granted joint custody over Mac's prosecution but disappeared UA with her mother and a "blond woman officer" before he could get her.
Un-credited as Baby Reese
The newly delivered son of Jody Reese, a SEAL killed when he went back to retrieve a companion that had been left behind.
Rodney [Lee] Scott as Bill Webster
The son of Scott Webster who stole some "stealth" paint that his father was working on in order to sell it to Ciecle Tech, the company that his "girlfriend" worked for. His father was charged and he finally came clean after Harm twisted everybody's arms.
Evan Farmer & Dave Power as Mid-Shipman Morris & Buchanan
Idiot midshipmen who challenged each other to a duel with swords in a public park over an argument about their great great grandfather's who had fought in the Civil War.
Jason Dohring as James Oliphant
The "spitter" who nearly helped the SECNAV ruin Chegwiddens career. When the admiral confronted him about his inconsiderate behavior the boy spit on him and was reflexively slapped across the face. The boys lies fit in nicely with the SECNAV and Lindsey's plan to "get the admiral back." Mac defended in a flag mast, and Stewart Dunston helped find that the boy was also lying about his father having died a hero and had abandoned the family.
Un-credited as High School students
The school's "yearbook crew" who were videotaping when Chegwidden slapped the "spitter."
Blayne Barbosa as Brad Millan
The 13 year old son of Major Millan, who brought home a surveillance camera plane to spy on his daughter, but who stole it out of the family car to spy on a neighbor girl. Mac intervened to prevent the girls mother from doing serious bodily damage to him.
Kasey Stevens as Vanessa Dupree
The "girl" who was spied on by an 13 year old boy using a spy plane camera that his dad had brought home to use to spy on his daughter. Her protective mother "went mental."
Uncredited as Angelshark's Captain's daughter
The daughter of the captain of the USS Angelshark, a submarine which was rammed by a Russian sub while under a black-op mission. It was damaged beyond repair and sunk after it sent a message buoy which eventually led to the recovery of the bodies of the crew. The CIA kept it secret from even the families until this girl, then a senator, forced the de-classification and release of information.
Uncredited as unknown boy in danger
The boy who was playing in a mine field when Bud Roberts and PO Coates were going to the ground breaking of a new school. Roberts attempted to save him and stepped on a land mine himself loosing a leg and almost his life. Dunston reported that the boy knew where the mines were located and never was in real danger.
as Cuban Boy
A cuban boy who gave Meg a cigar in order for his father to introduce himself to Harm and offer help from the resistance.
as
The little brother of an ex-gang member who was drawn into the gang and needed to be "rescued." He finally agreed to go to a military boot camp to get out of the hood.
as Kathy
Girl who followed "UFOs" onto a deserted military base thinking people were ghosts who may be able to talk to her dead mother. Harm and her uncle saved her from a drug ring using the base.
as Rachel Sherkston
The daughter of "the son Chegwidden never had," Lt Sherkston. She smuggled french fries into her dad when he was being diagnosed with leukemia.