Allen Swift
Description
Ira J. Stadlen, known professionally as Allen Swift, was an American actor, writer and magician, best known as a voiceover artist who voiced cartoon characters Simon Bar Sinister and Riff-Raff on the Underdog cartoon show. He took his professional name from radio comedian Fred Allen and 18th century satirist Jonathan Swift.
Wikipedia. CC BY-SA 4.0. Updated May 13, 2026.
