Christina Pickles as Christina “Trish” (Rabb) Burnett
Harm’s mother who waited a long time not knowing the disposition of her husband Harmon Rabb Sr. after he was shot down over Vietnam and listed MIA. She remarried Frank Burnett, an executive for Chrysler and lives in La Jolla California.
Jon Cypher as Frank Burnett
Harm’s stepfather. He is a Vice President at the Chrysler Corporation and aided Harm financially in tracking down his father’s location in Russia. Harm’s obsession with his natural father apparently never let him get close to the boy but he told Harm that he was "the only son he’d ever had."
Jade Carter as Sergei Zhukov
The brother of Harm by his fathers Russian Wife. Sergei was not able to obtain US citizenship even with the DNA from Harm’s fathers saliva off old letters kept by Harm’s mother. Harm rescued him from a death sentence pronounced by an arms dealing general but couldn’t keep him from getting "lonely" and going back to Russia when his US citizenship was denied.
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.
David James Eliot as Harmon Rabb Sr.
Harm’s father – shot down & MIA in Vietnam. Taken to Russia, but escaped to the countryside & lived with peasant farmers until killed defending his “wife” after fathering Sergei. Richard Crenna performed his voice.
Leeza Vinnichenko as Pitchta
Harm’s stepmother. She took Harmon Rabb Sr in when he escaped from KGB captivity. They had a son Sergei before Harmon was killed while protecting her from drunken Russian soldiers and buried in an unknown grave in the Tiga forest.
as Mrs. Rabb
(in “ghost ship”)
Unshown as Paternal grandmother Sarah Rabb
Harm spent a few months with her in Belleville Pennsylvania learning about his father and grandfather and receiving their old Stearman plane which he refurbished and flies with pride.
Steven Ford as Dan Austin
Megs father who appeared to her while she was in a coma from being shot by an assassin.
Conchata Farrell as Deanne MacKenzie
Mac’s mother. She was abused by Mac’s alcoholic father and abandoned them on Mac’s 15th birthday taking the family dog with her. Mac reconciled with her at the deathbed of her father saying she forgave her for abandoning her.
Un-credited as Joseph MacKenzie
Mac’s abusive alcoholic father who raised her after her mother left. Estranged, he only followed her career in the newspaper clippings that he saved. He was in a coma at death when Mac finally made peace with him. Said through father Genaro that he was most proud of Mac for rising above his failure as a father.
Mae Whitman as Chloe Madison
Mac considers her an “adopted daughter” although technically she was assigned as a “little sister” needing a lot of guidance. Her father is in the navy, mother deceased and she now lives with her grandparents in the country. She has Mac’s old drug sniffing dog.
Carmen Argenziano as Matthew O’Hara
Mac’s militia member uncle who took her to Red Rock Mesa in the desert & kept her safe looking for dinosaur tracks while she was drying out from alcoholism. She and Harm had to locate him when he stole the declaration of independence and Harm defended him at his trial.
Joe Lando as Christopher Ragle
Mac’s estranged husband who attempted to kill Farrell and forced Mac to kill him. Was in prison and tried to extort money from Mac to pay back a “loan shark” after he got out.
Barbara Carrera as Marcella Paretti
Admiral Chegwidden’s first wife. The daughter of the town mayor, she married A.J. because he “looked good in dress white uniform and had a good heart.” She left him because of the “trail of blood” he had as a SEAL. She took Francesca back to Italy with her and married Vittorio Paretti. It was only many years later that she told AJ she wished he had come after her.
Giuliana Santini as Francesca (Chegwidden) Paretti
Admiral Chegwidden’s daughter who has been raised by her mother and Mafioso step father, Vittorio Pareti, in Italy. The admiral had to rescue her from kidnappers brought about by her step-fathers’ stealing stolen goods from a rival “family.”
Jon Pennell as Lt Sherkston
As a youth he was sort of a Delinquent and stole Chegwidden’s car; then, when chegwidden offered to drop the charges if he would join the navy, he became a SEAL. His wife, Shelly, called Chegwidden when “sharkey” was refusing treatment for Leukemia after having seen his father die emaciated following his cancer treatments. The admiral used “tough love” to help him “not ring the bell” and accept treatment in “Shakedown”.
Ashley Drane as Lisa Rossbach
Admiral Chegwidden’s goddaughter. The daughter of Merrill Rossbach, captain of a destroyer, Lisa ran away from her aunt’s house for “sanctuary” at C’s. A spoiled brat, she was rude, self-centered, demanding and dishonest whenever C didn’t give her what she wanted. Her mother had to take leave in the middle of deployment to resolve her issues.
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 was born at JAG headquarters on the floor of Admiral Chegwidden’s office and delivered by the Admiral himself.