[Bear_in_RoseBear]

Well, the voice of Mr. Magoo himself was Jim Backus. But Casey Kasem was a voice actor on that cartoon, doing other voices.

[RosieCotton]

Oh, OK. Now I feel better. I didn't read the entry well enough.

[Ramius]

Jim Backus!! Yes... that's right. He was, of course, Mr. Howell on Gilligan's Island.

Ran into him once... in the gift shop of the Empress Hotel in Victoria B.C. One of those unexpected things... What do you say to an actor you know very well but was never really all that great? :-)