The Black Cosmic Ray

The Black Cosmic Ray ("Kuroi Uchūsen" 黒い宇宙線) - English dub titled as "Mysterious Cosmic Rays" - is an episode of the 1963 Astro Boy anime series.

Synopsis
A monster appears in the city, and it turns out to be Dr. Dorian, who has been exiled to Mars. He turns into a monster because he cannot get cosmic X-rays on the Earth.

Characters
In Order of Appearance: