Super Friends - Season 1 - Eps 15: The Planet-Splitter
Eccentric, ingenious scientist Dr. Laban has stolen the largest diamonds in the world to power his "planet splitter," a device capable of splitting a planet in half, intending to tow half of it to Earth as a second moon. While the Super Friends guard the remaining diamonds in the world, Wendy and Marvin follow Dr. Laban to his secret laboratory, where Laban tells him of his plan.
About Super Friends

Title: Super Friends
First Air Date: 1973-09-08
Last Air Date: 1985-10-26
Status: Ended
Rating: 7.6/10 (from 119 votes)
Language: EN
Seasons: 10
Total Episodes: 109
Network: ABC
Genres: Animation, Sci-Fi & Fantasy
Production Companies: Eric Porter Studios, Hanna-Barbera Productions
Synopsis
The most powerful heroes ever--Superman, Wonder Woman, Aquaman, Batman and Robin--join forces with teenagers Wendy and Marvin and their dog, Marvel the Wonderdog, to defend justice and guard the innocent.
Cast

Danny Dark
Superman (voice)

Adam West
Batman (voice)

Casey Kasem
Robin (voice)

Mark L. Taylor
Firestorm (voice)

Frank Welker
Darkseid (voice)

William Callaway
Aquaman (voice)

Ernie Hudson
Cyborg (voice)

B.J. Ward
Wonder Woman (voice)

René Auberjonois
Desaad (voice)