The Super Mario Bros. Super Show! Plumbers of the Year/The Adventures of Sherlock Mario (1989) Online
When Professor Koopa-arity kidnaps the brilliant criminologist Herlock Sholmes, the Marios turn detective.
| Episode cast overview, first billed only: | |||
 | Lou Albano | - | Mario |
 | Harvey Atkin | - | King Koopa / Mushroom Mayor / Tryclyde / Snifit (voice) |
 | Jeannie Elias | - | Princess Toadstool / Shyguy (voice) |
| John Stocker | - | Toad / Mouser #1 / Koopa Troopa / Beezo / Flurry (voice) |
| Danny Wells | - | Luigi |
| Robert Bockstael | - | Mouser #2 / Additional Voices (voice) |
| Greg Morton | - | Additional Voices (voice) |
| Dorian Joe Clark | - | Additional Voices (voice) |
 | Joyce Gordon | - | Additional Voices (voice) |
| Rob Cowan | - | Additional Voices (voice) |
| Greg Swanson | - | (voice) |
| Denise Pidgeon | - | Additional Voices (voice) |
| Diane Fabian | - | Additional Voices (voice) |
 | Marilyn Lightstone | - | Additional Voices (voice) |
 | Tabitha St. Germain | - | Additional Voices (voice) (as Paulina Gillis) |