Gregson Wagner's first film role was as Lisa in film Fathers & Sons, with Jeff Goldblum and Famke Janssen in 1992. She then had a small role in the movie Buffy the Vampire Slayer. Following that film she starred in several TV movies including Modern Vampires, Hefner: Unauthorized, and The Shaggy Dog. In 1995 she starred with her stepfather Robert Wagner in a Hart to Hart TV movie. She starred in the Wes Craven film The Outpost. In 1996 she co-starred with Jon Lovitz in the comedy High School High. In the 1997 film Two Girls and a Guy she played Lou, a sexually liberated young woman, who discovers that her actor boyfriend Blake Allen (Robert Downey Jr.) is cheating on her with Carla Bennett (Heather Graham). Gregson Wagner had a small role in the 1998 thriller Urban Legends in which her character Michelle is killed off in the first few minutes by a serial killer hiding in the backseat of her car. That same year she guest starred in an episode of Ally McBeal. In 1999 she played a heroin junkie in the Another Day in Paradise where she had an explicit sex scene with Vincent Kartheiser.
Daughter of Natalie Wood and Richard Gregson.
Former stepdaughter of Robert Wagner.
Niece of Lana Wood and Michael Craig.
Half-sister of Courtney Wagner.
Owns a West Highland White Terrier.
Her wedding was featured in the February 2004 issue of InStyle Magazine.
Named after her mother whose family nickname was Natasha.
Her mother, Natalie Wood drowned when Natasha was only eleven years old.