Lum the Invader Girl Galactic Teacher CAO-2 Strikes Back! (1981–1986) Online
Oyuki meets with Lum, Benten, and Ran to warn them that their old elementary school teacher, CAO-2, has escaped. CAO-2 was a huge, menacing robot teacher shaped like a huge chalkboard eraser. He ran his class with an iron fist, had zero-tolerance for all the pranks that Lum and Benten pulled on him, and often punished them by hurling himself at them. The girls managed to trap him on a stalactite on some remote planet after a chase through space, but now that he's escaped, he's looking for revenge!
|Episode cast overview:|
|Fumi Hirano||-||Lum (voice)|
|Toshio Furukawa||-||Ataru Moroboshi (voice)|
|Yô Inôe||-||Ran (voice) (as Yô Inoue)|
|Noriko Ohara||-||Oyuki (voice)|
|Yûko Mita||-||Benten (voice)|
|Akira Kamiya||-||Mendou (voice)|
|Michihiro Ikemizu||-||Onsen Mark (voice)|
|Ichirô Nagai||-||Narrator / CAO-2 (voice)|
The name CAO-2 is derived for the formula for Calcium Oxide. In another reference to calcium, he was trapped on a planet that is made up of calcium.
CAO-2's method of punishment by launching himself at his students hearkens back to a time when Japanese teachers would routinely punish their students by throwing chalkboard erasers at them.