Grandma Tracy is the mother of Jeff Tracy, grandmother of his five sons (with his late wife, Lucille), and matriarch of the Tracy family.
Grandma appears in 17 episodes: Terror In New York City, Day Of Disaster, Desperate Intruder, End Of The Road, The Uninvited, Operation Crash-Dive, Vault Of Death, The Mighty Atom, The Man From MI.5, Cry Wolf, Move And You're Dead, The Duchess Assignment, Attack of the Alligators!, The Cham-Cham, Lord Parker's 'Oliday, Ricochet, and Give Or Take A Million.
She also appears in the movie Thunderbird 6, although only in a non-speaking role.
Move and You're DeadEdit
- Main article: Grandma Tracy's Adventure
End of the RoadEdit
- Main article: Grandma Plays Cupid
- Main article: Grandma Tracy's House
- Main article: Grandma Tracy/Outfits
- Unlike many other recurring characters in Thunderbirds, a lot of Grandma's personal life is unknown. She was born in the late 1980s, and her grandmother once told her about the old subway systems that existed across the world before Monotrains were invented.
- It is rumoured that her first name is Cecilia.
- The Grandma puppet was sculpted by John Blundall, who also made Kyrano and Parker; and was provided with "normal," "smiler," "frowner" and "blinker" heads.