COBALT MAN

Real Name: 
Ralph Roberts
Universe/Timeline: 
Marvel Universe
Status: 
Deceased
Additional Status Info: 
Category: 
Other
Additional Category Info: 
Science-Based Mutate / Exotic Technology User
Nationality: 
American
First Appearance: 
X-Men (1st series) #31
Last Appearance: 
Defenders (1st series) #43
Cause of Death: 
Died in a nuclear implosion while trying to kill his slaver, Egghead