Robert Donner (April 27, 1931 – June 8, 2006) was an American television and film actor.

He spent four years in the United States Navy and was stationed in California.

After he completed his military service, he settled in the Los Angeles area.

[citation needed] Donner's first role was an uncredited part in the 1959 John Wayne Western Rio Bravo; he also appeared in the sequels (which formed a loose trilogy), El Dorado and Rio Lobo.

His best-known television roles were as the ex-convict/informant T.J. on Adam-12, Yancy Tucker on The Waltons and as Exidor on Mork & Mindy, the last role of which he became an audience favorite with a rare talent able to comically perform with Robin Williams to good effect.