^ Recurring characters include Frosty the Snowman (voiced by Jackie Vernon), Santa (voiced by Paul Frees), and Professor Hinkle Tinkerton (voiced by Billy De Wolfe) in this special. Frosty the Snowman (TV Short 1969) - Cast and crew credits, including actors, actresses, directors, writers and more. Find out who voiced Frosty, Karen, Santa Claus and other characters in the classic 1968 TV special Frosty the Snowman. See the voice cast, credits, photos and sounds of the show. · Here's everything fans need to know about the talented cast behind the voices of Frosty the Snowman, airing December 9 at 8 p.m. on NBC. Realizing that newly-living Frosty will melt in spring unless he takes refuge in a colder climate, the magic snowman and Karen, a young girl whom he befriends, stow away on a freight train headed for the North Pole. Cast & Crew Cast Crew Jimmy Durante Billy De Wolfe Professor Hinkle Jackie Vernon Frosty the Snowman Paul Frees Santa Claus, Traffic Cop, Additional Voices June Foray Teacher, Karen, Additional Voices Learn more about the full cast of Frosty the Snowman with news, photos, videos and more at TV Guide