The character appears in the Marvel Universe, created by writer Peter Milligan and artist Mike Allred.

[1] He is a green, floating reniform creature of unknown origins who speaks in a "language" all his own (represented in text by a special font).

[citation needed] 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 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.

At one point, Doop secretly videotapes the rookie X-Statix member El Guapo succumbing to the temptations of fame and having a threesome.

Despite the seriousness of an innocent man having just died, Doop makes a joke in his language, which greatly entertains the team members present.

At the end he simply kills Corkscrew with an axe, but not before subjecting the mentally unstable mutant to psychological torture.

The Avengers, in the end, allow Doop back in to X-Statix custody, after they show courage and responsibility in facing the Asgardian threat of the "Three Sisters".

However, the vacationing X-Men Havok and Polaris encounter a Doop-like entity when it crashes to Earth from outer space.

[6] Doop returns in a story published in the Nation X anthology series, where he is brought onboard Utopia as a private investigator.

[7] The first issue of Wolverine and the X-Men lists Doop as an adjunct member of the teaching staff at the Jean Grey Institute for Higher Learning.

Wolverine alone knows that Doop is actually the secret protector of the school, spending most of his time gathering and acting upon information regarding possible threats to the students.

He is seen waiting with his arms crossed on the jet's loading ramp as Transonic carries an asleep Pixie on board.

Whatever his control over time or space may be, it is apparently not powerful enough for the team to use him for teleporting the group; they relied first on U-Go Girl and later on Venus Dee Milo for long-distance travel.

Doop has stretched his facial features and tongue on numerous occasions, and once plucked an eye from his head and then replaced it.

Some time later, when Doop thought that Wolverine was dangerously insane, he was prepared to attack the X-Man with a broken glass bottle.

[15] Series editor Axel Alonso responded in an October 8, 2001 article by Eric J. Moreels on the X-Fan site (now Comixfan) which was previously part of Cinescape.com: It was brought to our attention only last week that some folks were popping over to Blambot.com to ostensibly decode the enigma of 'Doop Speak'.

Says [series writer] Peter Milligan, and I quote: 'Any such alphabet that purports to exist is to 'Doop Speak' what a Greek Restaurant menu is to The Iliad.