Dick Dastardly
.....................................................................
Paul Winchell
Muttley
......................................................................................
Don Messick
Penelope Pitstop
....................................................................
Janet Waldo
Clyde
........................................................................................
Paul Winchell
The Anthill Mob
...........................................................................
Mel Blanc
Red Max
..................................................................................
Paul Winchell
Professor Pat Pending
......................................................... Don
Messick
Sawtooth
...................................................................................
Don Messick
Ring-A-Ding
..............................................................................
Don Messick
Big Gruesome
...........................................................................
Daws Butler
Little Gruesome
......................................................................
Don Messick
Peter Perfect
...........................................................................
Daws Butler
Rufus Ruffcut
.........................................................................
Daws Butler
The General
....................................................................
John Stephenson
Sergeant
....................................................................................
Daws Butler
Rock Slug
..................................................................................
Daws Butler
Gravel Slug
...............................................................................
Daws Butler
Luke Bear
........................................................................
John Stephenson
Blubber Bear
..................................................................
John Stephenson
Narrator
..................................................................................
Dave Willock