Professor Ludwig Von Drake is a cartoon character created in 1961 by The Walt Disney Company. He was first introduced as the presenter (and singer of "The Spectrum Song") in the cartoon An Adventure in Color, part of the first episode of Walt Disney's Wonderful World of Color on NBC. Said to be an uncle of Donald Duck, he is described as a scientist, lecturer, psychologist, and world traveler. The character displayed his "expert" knowledge on a variety of subjects in eighteen episodes of the classic anthology series, as well as on a number of Disneyland Records.