Cassius

Cassius, formally referred to as Warlord Cassius of the Tharsis Quadrangle, is a recurring character in the World's Greatest Adventures series. His body is portrayed by puppet The Robot while Aristide Twain provides the vocals.

Overview
Warlord Cassius is the bellicose dictator of the Tharsis Quadrangle, on the planet Mars. Cassius has dreams of interplanetary conquest, but his nation's code of honor dictates that he must defeat Earth's champion in duel before he can take over the planet. After scouring the human Internet, he mistakenly determined that the champion of the planet Earth must be Rufus Hooter Talltales, and has been fixated on defeating the klutz ever since — with Rufus proving surprisingly adept at foiling the cyborg. Cassius is a master wielder of the Disintegrator Sword.

Physical Appearance
Like most other Martians, Cassius is never seen out of his blocky robot-suit, which, due to his high status, contains several special features such as a built-in teleportation circuit. Despite his imposing voice, he is only a few feet tall, and his suit's frame was heavily battered by his duel with Rufus.

List of appearances

 * World's Greatest Adventures
 * Season 1:
 * Episode 20 (voice)
 * Episode 21: Escape from Mars
 * Episode 24
 * Season 2:
 * Episode 5
 * Episode 6
 * Episode 8