Jack Gross Jr. (February 4, 1929 – December 14, 2007) was an American film screenwriter and television situation comedy writer.

[1] His brother Laurence Gross was an entertainment critic on KNSD TV.

[2] On television, he wrote episodes of Gilligan's Island, Diff'rent Strokes and My Favorite Martian.

He was a graduate of San Fernando Valley State College, now known as CSUN, and the USC School of Cinematic Arts.

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