Tarzan, Lord of the Jungle Tarzan at the Earth's Core (1976–1978) Online
Tarzan discovers a world hidden deep inside the Earth inhabited by two warring tribes.
| Episode credited cast: | |||
 | Robert Ridgely | - | Tarzan (voice) (as Bob Ridgely) |
| Rest of cast listed alphabetically: | |||
 | Jack Bannon | - | (voice) |
 | Ted Cassidy | - | (voice) |
 | Robert Chapel | - | (voice) |
| Linda Gary | - | (voice) |
| Joan Gerber | - | (voice) |
 | Barry Gordon | - | (voice) |
| Hettie Lynne Hurtes | - | (voice) |
 | Alan Oppenheimer | - | (voice) |
| Lou Scheimer | - | N'Kima |
| Jane Webb | - | (voice) |