After The Aquanauts, Larsen appeared as Jack Bennett in the 1961 episode "Blondes Prefer Gentlemen" of the ABC series The Roaring Twenties, with Donald May, Rex Reason, and Dorothy Provine. His other television roles, all in 1960, were as John Edwards in "The Hostage" episode of the ABC and syndicated western series, Tombstone Territory, as John Napier in "Nightmare Crossing" episode of NBC's The Man and the Challenge, and as the Indian, Blue Raven, in the episode "Seed of Hate" in NBC's western Wichita Town.