Suggestions by @elmerserranoportillo

Gregg Berger

as Post the Mailman in The Huckleberry Hound and Snagglepuss show (2006-2009)

Neil Ross

as Creeper in The Huckleberry Hound and Snagglepuss show (2006-2009)

Tom Kenny

as Mr. W.C. Cogswell in The Huckleberry Hound and Snagglepuss show (2006-2009)

Keith Ferguson

as Crew member in The Huckleberry Hound and Snagglepuss show (2006-2009)

Gregg Berger

as Skipper in The Huckleberry Hound and Snagglepuss show (2006-2009)

Gregg Berger

as Cop #12 in The Huckleberry Hound and Snagglepuss show (2006-2009)

Mark Hamill

as Master Control in The Huckleberry Hound and Snagglepuss show (2006-2009)

Jane Lynch

as Zoe in The Huckleberry Hound and Snagglepuss show (2006-2009)

Danny Mann

as Baby Eddie in The Huckleberry Hound and Snagglepuss show (2006-2009)

Frank Welker

as Bigfoot in The Huckleberry Hound and Snagglepuss show (2006-2009)

Grey DeLisle

as Dr. Mary in The Huckleberry Hound and Snagglepuss show (2006-2009)

Wally Wingert

as Dr. Canal in The Huckleberry Hound and Snagglepuss show (2006-2009)

S. Scott Bullock

as Dr. Weisberg in The Huckleberry Hound and Snagglepuss show (2006-2009)

Mark Hamill

as Cop #7 in The Huckleberry Hound and Snagglepuss show (2006-2009)

David Cross

as Rodney in The Huckleberry Hound and Snagglepuss show (2006-2009)

Bob Bergen

as Loudmouse in The Huckleberry Hound and Snagglepuss show (2006-2009)

Billy West

as Undercover Elephant in The Huckleberry Hound and Snagglepuss show (2006-2009)

Dee Bradley Baker

as Buckley in The Huckleberry Hound and Snagglepuss show (2006-2009)

John DiMaggio

as Dirk Dinkum in The Huckleberry Hound and Snagglepuss show (2006-2009)

Bob Bergen

as Dr. McCloon in The Huckleberry Hound and Snagglepuss show (2006-2009)