[1] Scheimer was the son of a German Jew who, according to family legend, had to leave Germany in the early 1920's after punching a young Adolf Hitler in 1921 or 1922, "well before" the Beer Hall Putsch.

In the mid-1950s, Scheimer was appointed to the position of art director while working at Larry Harmon Pictures on the made-for-TV Bozo and Popeye cartoons.

[3] While working there, they were contracted by SIB Productions, a Japanese firm with U.S. offices in Chicago, who approached them about producing a cartoon called Rod Rocket.

Paramount Pictures soon purchased SIB Productions, and the contract allowed True Line to hire additional staff, such as former radio disc jockey Norm Prescott.

They also tried to develop an original series named The Adventures of Stanley Stoutheart (later renamed Yank and Doodle), but they were never able to sell it and almost closed down.

He was also the voice of Legal Eagle and the Brown Hornet's sidekick Stinger, and did voice-over narration during the opening credits of the majority of Filmation shows and cartoons.

In the live-action series The Ghost Busters, which starred Forrest Tucker and Larry Storch with Bob Burns, he was the voice of Zero, the unseen boss of the main characters.

on Space Sentinels, Trouble, Spinner and Scarab on Tarzan and the Super 7's Superstretch and Microwoman and Web Woman, Dinny on Fabulous Funnies, Mighty Mouse on The New Adventures of Mighty Mouse and Heckle & Jeckle,[11][12] Tom Cat, Jerry Mouse, Spike, Tuffy, Slick Wolf and Barney Bear on The Tom and Jerry Comedy Show,[13] the Olympian Computer on Sport Billy,[14] Gremlin on The New Adventures of Flash Gordon, Bumper on Gilligan's Planet, and Tracy the Gorilla on Ghostbusters.

Westinghouse Electric Corporation, through its Group W Productions division, acquired Filmation along with its purchase of TelePrompTer's cable and entertainment properties in 1981.

This is also why his wife and daughter did various small parts in the first season of He-Man, with Erika Scheimer performing supporting female voices and occasional voice-acting for young boy characters.

Scheimer transformed He-Man from a graphically violent version of Conan the Barbarian into a pro-social character, who imparted a life lesson to impressionable viewers in each episode.

A Dutch investment company, Dreamweavers, NV., approached him with a concept based on an off-kilter Dutchman's renderings of characters aimed at young adults.

The Lou Scheimer Gallery at the ToonSeum, a museum of comic and cartoon art in Pittsburgh, Pennsylvania, is named in his honor.