Doop was said to be the product of a Cold War era U.S. military experiment, becoming instrumental in the fall of the Soviet Union.
He later served as the cameraman for the celebrity mutant superhero team X-Statix (formerly known as X-Force). He films a mission to North Africa which is later criticized by then-team leader Zeitgeist; he feels Doop should not be going for artistic shots. The next X-Force mission is to New York, where they are to rescue the boy band "Boyz R Us" from hostage takers. While in the briefing room, U-Go Girl asks Doop not to keep shooting her rear from a low angle. Doop replies in his language only the characters know, while inexplicably mouthing some of his recording equipment.
The building is attacked by a helicopter gunship, killing the hostages and many of the terrorists. Most of the team dies also, with the exception of Doop, U-Go Girl and Anarchist. Doop gets high-quality images of the two slaying the remaining killers.
Plush Doop dolls are seen on sale at the X-Statix cafe, for five dollars apiece. One of these is vandalized by Wolverine.
At one point, Doop secretly videotapes the rookie X-Statix member El Guapo succumbing to the temptations of fame and having a threesome. The released video destroys El Guapo's relationship with his original girlfriend.
A section of X-Force headquarters is set aside for Doop's family, who are never seen in panel. This part is talked about very little by the team. The team hides in this area when they believed themselves to be in supernatural danger