Trivia

Besides Arnold Schwarzenegger, he is the only actor to appear in the first three "Terminator" films: The Terminator (1984), Terminator 2: Judgment Day (1991) and Terminator 3: Rise of the Machines (2003)). He portrayed the character of Dr. Peter Silberman in all three films. Neither he nor Schwarzenegger appeared in the fourth film Terminator Salvation (2009) but Schwarzenegger returned for Terminator Genisys (2015).

Has played a psychologist five times: The first three Terminator movies, Naked Gun 33 1/3: The Final Insult (1994) and Nutty Professor II: The Klumps (2000).

Supposedly retired from screen acting in December 2003, but continued to do voice acting in radio, animated series and video games.

Has appeared with his late wife Carole Kean in the comedy film Stewardess School (1986).

Has appeared in two movies which end in nuclear war: Miracle Mile (1988) and Terminator 3: Rise of the Machines (2003). The former has a character named after Harlan Ellison who was also given a writing credit for The Terminator (1984).

He has appeared in two films that have been selected for the National Film Registry by the Library of Congress as being "culturally, historically or aesthetically" significant: The Terminator (1984) & Terminator 2: Judgment Day (1991).

Voiced the characters Dr. Regis Blackgaard and Edwin Blackgaard on the long-running Christian radio program Adventures in Odyssey.

Survived by his wife, Cathy, one daughter, Ruby, three grandchildren, Kimmy, Abaricia, and Kimo Harbin.

Created and directed a dinner show ("Murder By Night") with his late wife Carole Kean that ran at The Cock & Bull restaurant on Sunset Blvd for several years and featured a young D.C. Douglas as the cross-dressing murderer.