Heathcliff and Marmaduke

Opening Titles

 * "Heathcliff and Marmaduke"

Ending Credits

 * Executive Producers: Joe Ruby & Ken Spears
 * Directors: Charles A. Nichols, John Kimball
 * Story: Tony Benedict, Don Jurwich, Tom Dagenais, Gordon Kent, Jack Enyart, Kayte Kuch, Paul Haggis, Michael Maurer, Jack Hanrahan, Jim McNamara, Mark Jones, Sandy Sandifer, Mark Shiney
 * Supervising Story Direction: Gordon Kent
 * Story Direction: Emily Kong, Alex Lovy, Tom Minton
 * Starring the Voice of: Mel Blanc
 * Additional Voices: Paul Winchell, Henry Corden, Don Messick, Alan Dinehart, June Foray, Avery Schreiber, Hal Smith, Marilyn Schreffler, Russi Taylor
 * Voice Direction: Alan Dinehart
 * Title Song sung by: Scatman Crothers
 * "Heathcliff" Created by George Gately · a comic strip of McNaught Syndicate, Inc.
 * "Marmaduke" Created by Brad Anderson · a comic strip of United Feature Syndicate, Inc.
 * Layout Supervision: Larry Huber
 * Layout: Peter Alvarado, Paul Gruwell, Wayne Becker, Mario Piluso, Kathleen Carr, Bill Reed, Jaime Diaz, Wallace Sides, Hak Ficq, Robert Zamboni, Ian McKenzie
 * Background Layout Supervision: David High
 * Background Layout: John F. Guerin, Bruce Zick
 * Models Supervision: Ric Gonzalez
 * Models: Alan B. Huck
 * Animation Supervision: Al Gaviota, Bill Reed
 * Background Styling: Eric Semones
 * Color Key: Bunny Munns
 * Titles: Bill Perez
 * Lettering: Bob Schaefer
 * Production Coordinator: Loretta High
 * Animation Checking: Stephen Carr, Patty Burns, Patricia Blackburn, Norell Nixon
 * Assistants to the Executive Producer: Erika Grossbart, Kayte Kuch
 * Production Assistants: Joyce Benson, Bryna Melnick, Cathy Rose, Debby Ruby, Teri Taylor
 * Studio Manager: Jeff Cooke
 * Music: Dean Elliott
 * Supervising Film Editor: Chip Yaras
 * Effects Editors: Karla McGregor, Kevin Spears
 * Music Editor: Mark Shiney
 * Negative Cutter: Mary Nelson
 * Laboratory: C.F.I.
 * Re-Recording: T.V.R.
 * This picture has made the jurdisction of I.A.T.S.E.-IA, affiliated with A.F.L.-C.L.O.
 * © 1981 Ruby-Spears Enterprises, Inc. · All Rights Reserved
 * The trademark Heathcliff and all characters of Heathcliff are the property of McNaught Syndicate, Inc. · All rights reserved.
 * The trademark Marmaduke and all characters of Marmaduke are the property of United Feature Syndicate, Inc. · All rights reserved.