Kruschen began working at a radio station in Los Angeles when he was 16.[2] During World War II, he served in the Army, assigned to the Armed Forces Radio Service (AFRS).[3] Following the war, he resumed working on network programs,[1] including Broadway Is My Beat (as Mugovin, a detective),[4] and Pete Kelly's Blues (as club owner George Lupo),[4]: 269 as well as frequent episodic roles on anthology series, westerns and crime dramas.
Kruschen appeared as Maurice Pulvermacher in the original 1962 Broadway production of I Can Get It for You Wholesale.[7] In 1969, he co-starred in the London staging of the musical drama Promises, Promises, reprising his film role in this show based on The Apartment.
Television
Kruschen was performing on television as early as 1939, appearing in dramas on Don Lee's experimental television station in Los Angeles, where he was seen on some two hundred television sets with three-inch screens. Thereafter, Kruschen's television career included guest villain Eivol Ekdol, a villainous magicians' craftsman on Batman (episodes 9 and 10). He was seen in twelve episodes of NBC's Dragnet (portraying a pedophile in one infamous episode) as well as the ABC/Disney series, Zorro. He also appeared in a color episode of Adventures of Superman. He had a recurring role across three seasons on Bonanza (Italian grapegrower Giorgio Rossi). He also played Clyde Bailey in "The Retired Gun" (episode 17) and Sammy in "One Went to Denver" (episode 25).
He appeared in the recurring role of "Grandpa Papadopolis" on Webster series (1985–87), and in the early 1990s, as another Greek grandfather and as Pam and Jesse's grandfather, Iorgos "Papouli" Katsopolis on Full House, appearing in only two episodes before his character is killed off in the episode, "The Last Dance". He also appeared as Kitty's grandfather, Fred Avery, on the CBC sitcom Material World from 1990-1993.
His final on-screen appearance was in the 1997 film 'Til There Was You as "Mr. Katz".
Death
Kruschen died on April 2, 2002,[1] in Chandler, Arizona, while vacationing. He had been in ill health for some time. He was 80. Though he died on April 2, his death was not widely reported to the media until mid-late May.[citation needed]
The Rifleman - "One Went to Denver" (1959) as Sammy, "The Retired Gun" (1959) as Clyde Bailey, "Baranca" (1960) as Doc Burrage, "Trail of Hate" (1960) as Doc Burrage
Bat Masterson - "The Inner Circle" (1959) as Patch Finley, "The Desert Ship" (1959) as Ben Tarko
Wanted: Dead or Alive - "The Empty Cell" (1959) as Hunt Willis, "Railroaded" (1959) as Sheriff Pig Wells
^"Jack Kruschen". Internet Broadway Database. The Broadway League. Archived from the original on January 11, 2021. Retrieved January 11, 2021.
^ abcdefTerrace, Vincent (2011). Encyclopedia of Television Shows, 1925 through 2010 (2nd ed.). Jefferson, N.C.: McFarland & Company, Inc., Publishers. p. 149. ISBN978-0-7864-6477-7.