Leonard Weinrib (April 29, 1935 – June 28, 2006) was an American actor, voice actor and writer. He is best known for playing the title role in the children's television show H.R. Pufnstuf, and as the original voice of Scrappy-Doo.
In the Lion episodes of Voltron: Defender of the Universe, he voiced Hunk and Prince Lotor.