Harry Clark was an American actor.

Clark was a factory worker who became involved with the International Ladies Garment Workers Union-sponsored revue Pins and Needles in 1937, and its success encouraged him to pursue a career in acting. His Broadway credits include The Skin of Our Teeth, One Touch of Venus, Call Me Mister, Kiss Me, Kate, Wish You Were Here, and Will Success Spoil Rock Hunter?.

From the early 1940s through the mid-50s, Clark appeared in a string of B-movies. On television, he appeared on the The United States Steel Hour's production of No Time for Sergeants and The Phil Silvers Show.

1955-1956 The Phil Silvers Show (TV series)
MSgt. Stanley Sowici
– Bilko's Hair (1956) … MSgt. Stanley Sowici (uncredited)
– Bilko and the Beast (1956) … MSgt. Stanley Sowici (uncredited)
– The Court Martial (1956) … MSgt. Stanley Sowici
– Army Memoirs (1956) … MSgt. Stanley Sowici
– Dinner at Sowici's (1956) … MSgt. Stanley Sowici
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1955 The Buick-Berle Show (TV series)
Waiter
– Episode #8.3 (1955) … Waiter

1955 Big Town (TV series)
– Honest Cop (1955)

1955 The United States Steel Hour (TV series)
Sgt. King
– No Time for Sergeants (1955) … Sgt. King

1953 Taxi
Riso (uncredited)

1952/I Anything Can Happen
Davit Routinian (uncredited)

1951 Crime Photographer (TV series)
– The Clean-Up (1951)

1950 Cry Murder
Joe

1949 Project X
Jed

1949 The Big Story (TV series)
Burns
– The Sniper … Burns

1942 Maisie Gets Her Man
Kid Percentage (uncredited)

1942 The Panther's Claw
Officer Lou Levinsky (as Harry Clarke)

1942 The Adventures of Martin Eden
Mike (uncredited)

1941 Ice-Capades
Reed

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1955 The Phil Silvers Show (TV series)
– Bivouac (1955) (performer: "Alabama Jubilee" Hail, Hail, the Gang's All Here - uncredited)
– The WAC (1955) (performer: "For He's A Jolly Good Fellow" - uncredited)