Movies:
* Superman (1978): General Zod (this role is what he is perhaps best known for)
* Superman II (1980): General Zod
* Superman III (1983): General Zod
* The Twilight Zone: The Movie (1983): The Man in the Bar
* The Toxic Avenger (1984): Mayor
* The Jewel of the Nile (1985): Omar
* The Goonies (1985): Francis Fratelli
* Moving (1988): The Mover
* Scrooged (1988): Ghost of Christmas Past
* The Adventures of Ford Fairlane (1990): Sam
* The Last Boy Scout (1991): Mr. "Big"
* The Naked Gun 2½: The Smell of Fear (1991): Police Captain
* Wayne's World (1992): Uncle Wayne
* The Santa Clause (1994): The Man in the Mirror
* The Santa Clause 2 (2002): The Man in the Mirror
* The Santa Clause 3: The Escape Clause (2006): The Man in the Mirror
Television:
* The Twilight Zone (1959-1964): "The Last Night of the World" (1961)
* The Wild Wild West (1965-1969): Multiple episodes
* Mission: Impossible (1966-1973): Multiple episodes
* The Partridge Family (1970-1974): Multiple episodes
* Mannix (1967-1975): Multiple episodes
* Starsky and Hutch (1975-1979): Multiple episodes
* The Love Boat (1977-1986): Multiple episodes
* Fantasy Island (1977-1984): Multiple episodes
* The Dukes of Hazzard (1979-1985): Multiple episodes
* Murder, She Wrote (1984-1996): Multiple episodes
* Quantum Leap (1989-1993): Multiple episodes
* Seinfeld (1989-1998): "The Doorman" (1993)
* Friends (1994-2004): "The One With the Cop" (1995)
* ER (1994-2009): Multiple episodes
* JAG (1995-2005): Multiple episodes
* CSI: Crime Scene Investigation (2000-2015): Multiple episodes
This is not an exhaustive list, but it covers some of Robert Donner's most prominent roles. He was a versatile and prolific actor, with a career spanning over four decades. He will always be remembered for his iconic performances in movies like "Superman" and "The Goonies."