Martin E Brooks, best known for his role in The Six Million Dollar Man, has died, a friend of the star said.
Film producer Jon Landau said that Brooks died on Monday of natural causes after a brief time in hospital in Los Angeles. He was 90 years old.
Brooks played scientist Dr Rudy Wells in the 1970s TV series and its spin-off, The Bionic Woman.
His other credits included The Philco Television Playhouse in the 1950s, Combat! in the 1960s and Knots Landing in the 1990s.
He also appeared on Broadway and as Dr Arthur Bradshaw in the daytime serial General Hospital.