Director
Charles Nichols
DIRECTOR
John Kimball
Stars (in credits order)
Mel Blanc
Heathcliff
Henry Corden
Clem
Don Messick
Mr. Post
Marilyn Schreffler
Additional Voices
Frank Welker
Dingbat
June Foray
Grandma
Janet Waldo
Clare Peck
Takayo Doran
Paul Winchell
Marmaduke
Russi Taylor
Barbie Winslow
Hal Smith
Avery Schreiber
Alan Dinehart