Publication Date: 7th May 2021
Written By: Monolith.
Image Work: Douglas Mangum.
Issue Checklist
[title] - Uncanny X-Men (1st series) #31
X-Men (1st series) #31

first appearance

[title] - noimage
Incredible Hulk (2nd series) #173

mutates after exposure to radiation

[title] - noimage
Incredible Hulk (2nd series) #174

explodes battling Hulk in space

[title] - noimage
Defenders (1st series) #42

recovered by Egghead and brainwashed

[title] - Defenders (1st series) #43
Defenders (1st series) #43

regains his senses and seemingly kills himself and Egghead In implosion

[title] - Civil War #1
Civil War #1

unidentified Cobalt Man in Stamford

[title] - Captain Marvel (6th series) #2
Captain Marvel (6th series) #2-4

Skrull imposter of Cobalt Man

[title] - noimage
Thunderbolts (1st series) #112

American Eagle defeats Cobalt Man imposter

[title] - Avengers Academy #10
Avengers Academy #10

Cobalt Men fight Speedball at Stamford memorial

[title] - Deadpool & the Mercs for Money (2nd series) #3
Deadpool & the Mercs for Money (2nd series) #3

Ralph Roberts apparently alive again as Cobalt Man