Earl Boen, known for starring as Dr. Silberman in The Terminator franchise, has died. He was 81.

Boen died on Thursday, Jan. 5 in Hawaii, per Variety. A cause of death wasn’t immediately available, but the outlet reports that he was diagnosed with stage four lung cancer last year.

The actor had an intensive resume, credited for 291 roles on IMDb. In addition to playing the criminal psychologist in the first three Terminator movies, Boen portrayed Reverend Meechum in the television sitcom Mama’s Family, Howard in the crime drama The Law & Harry McGraw and Father Salerno in The Golden Girls.

Aside from Arnold Schwarzenegger, Boen is the only actor who has appeared in each of the first three Terminator movies. He appeared in the sixth, Terminator: Dark Fate, through archival footage. Boen commented on his infamous role in a 2014 interview, calling his character “the cockroach that wouldn’t die. I just keep turning up and showing up.”

He continued, “Besides Arnold, I’m the only one that was in all of the first three Terminator movies. Him and I, we are the only two that can say that.” Boen told the interviewer that he wasn’t asked to reprise his character in Terminator Genisys, but he “would do it” if asked.

Since making his on-screen debut in 1974, Boen has also voiced numerous characters in animation projects, such as Skeleton Warriors, Spider-Man: The Animated Series, Clifford the Big Red Dog and Kim Possible.

Moreover, the actor voiced a variety of characters in popular video games, including The Narrator and other characters in seven World of Warcraft games, Tales of Monkey Island and Blood Omen 2.

Boen is survived by his wife, stepdaughter and two grandchildren.