John Mahoney is an English-born American actor who is best known for his role as Martin Crane on the NBC sitcom Frasier from 1993 to 2004.

He performed the voice of Papi in Kronk's New Groove. In The Emperor's New School, he couldn't reprise his role and was replaced by Jeff Bennett. He voiced Preston B. Whitmore in Atlantis: The Lost Empire and Atlantis: Milo's Return. He also played Poppy Burns in Dan in Real Life.