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Monolith of Evil/Attack of the Vampire 

Solomon Grundy takes the Legion of Doom down to center of the Earth where he shows them a monolith that he claims is the source of all evil. The Legion schemes to trick the SuperFriends into obtaining it for them.




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Episode credited cast:
The Flash / Hawkman / Samurai / Japanese Distress Caller (voice)
Marlene Aragon ...
Cheetah (voice)
Lewis Bailey ...
(voice) (credit only)
The Riddler (voice)
Aquaman (voice) (as Bill Callaway)
Brainiac / Black Manta (voice)
(voice) (credit only)
(voice) (credit only)
Danny Dark ...
Superman / Man in Car (voice)
(voice) (credit only)
Wonder Woman (voice)
Ruth Forman ...
(voice) (credit only)
(voice) (as Bob Hastings) (credit only)
(voice) (credit only)
Buster Jones ...
Black Vulcan (voice)


Solomon Grundy informs the Legion of a 'single source of all-evil power' which he believes is buried in the center of the Earth. The Hall of Doom soon drills down through the Earth in pursuit of this monolithic evil power. Unfortunately for the Legion it is guarded by a giant lava monster. They devise a scheme to fool the Superfriends into getting the power source for them. Superman, Hawkman and Black Vulcan soon have fallen into the Legion's trap and must fight for their lives in the subterranean labyrinth while the Legion wreaks havoc with the power source above ground. Written by tomtrekp

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Release Date:

14 October 1978 (USA)  »

Company Credits

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Did You Know?


The shrunken U.N. Building/Monolith changes size many times throughout this episode. See more »


[first lines]
Toyman: That's absurd! You'll never convince me that there is one single source of all evil power.
See more »


Referenced in Aqua Teen Hunger Force: MC Pee Pants (2002) See more »

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