Chemo was working under the orders of the Brain and threatened Bialya into submission after defeating its navy and devouring a nuclear missile. He was opposed by Batman and Aquaman, in which during the battle Chemo infected Batman with its phyllosilicates. Chemo was soon defeated as Batman was able to eliminate the missile which breaks up Chemo.
Chemo later battled Batman again and the Metal Men, whom the latter helped in defeating Chemo.
- This version of the character is exclusive to the continuity of the television series Batman: The Brave and the Bold and its tie-in video game and comic book series, Batman: The Brave and The Bold and All-New Batman: The Brave and the Bold. It is an adaptation of Chemo. The original character was created by Robert Kanigher and Ross Andru and first appeared in Showcase #39.
- Chemo's vocal effects were performed by Dee Bradley Baker.
- Whenever Chemo fires his mouthblast, a Godzilla roar is heard.
- 4 Appearances of Chemo (The Brave and the Bold)
- 1 Images featuring Chemo (The Brave and the Bold)
- Quotations by or about Chemo (The Brave and the Bold)
- Character Gallery: Chemo (The Brave and the Bold)
Metal Men Villain(s)