Scooby-Doo and Scrappy-Doo (TV Series)
Twenty Thousand Screams Under the Sea (1979)
Full Cast & Crew
Writing Credits (in alphabetical order)
| Glenn Leopold | ... | (writer) |
Cast
| Pat Fraley | ... | Tiger Morris / Policeman (voice) | |
| Casey Kasem | ... | Shaggy / Diving Judge (voice) | |
 |
Don Messick | ... | Scooby-Doo (voice) |
| Heather North | ... | Daphne (voice) (as Heather North Kenney) | |
| Patricia Stevens | ... | Velma (voice) | |
| Lennie Weinrib | ... | Scrappy-Doo (voice) | |
| Frank Welker | ... | Fred / Senor Gonzalez (voice) | |
Editing by
| Gil Iverson | ... | show editor |
Art Department
| Cullen Blaine | ... | story director (as Cullen Houghtaling) |
| John Bruno | ... | story director |
| Dan Danglo | ... | story director |
| Jan Green | ... | story director |
| Jack Kinney | ... | story director |
| Emilie Kong | ... | story director |
| Larry Latham | ... | story director |
| Fred Lucky | ... | story director |
| Don Sheppard | ... | story director |
Sound Department
| Karla Caldwell | ... | sound effects editor (as Karla McGregor) |
| Bill Getty | ... | sound director |
| Mark A. Mangini | ... | sound effects editor (as Mark Mangini) |
| Richard Olson | ... | sound director |
Animation Department
| Danny Antonucci | ... | animator |
| Phyllis Craig | ... | animator |
| Larry Leker | ... | layout artist |
| Bob Revell | ... | animation checker |
| Tom Cook | ... | animator (uncredited) |
Editorial Department
| Larry C. Cowan | ... | supervising film editor |
Music Department
| Hoyt Curtin | ... | musical director |
