Otto Messmer

Otto James Messmer was born on August 16, 1892, and died on October 28, 1983. An American animator, he is best known for his foundational work on the Felix the Cat cartoons and the accompanying comic strip produced by the Pat Sullivan studio. Messmer’s precise role in the character’s creation and enduring popularity remains a matter of debate, as he only publicly asserted his claim after Sullivan’s death, when Sullivan had long received sole credit. In the comic book medium, Messmer is credited as artist, inker, letterer, and writer on over one hundred issues from 1942 to 1996, most prominently for *Pat Sullivan's Felix the Cat*, *Felix the Cat*, *Four Color*, and *The Nine Lives of Felix the Cat*. His signature style—clean, expressive linework and a playful, rubbery sense of motion—defined the look and personality of Felix across decades. Key collaborators included Pat Sullivan, though their partnership remains complicated by the credit dispute. Messmer’s later life saw him continue working on Felix material into the 1960s, solidifying the character’s place in popular culture. His legacy is as the uncredited architect of one of animation’s first superstars, and his contributions were recognized posthumously with a Winsor McCay Award in 1983.