Mojo is a fictional character, a supervillain appearing in American comic books published by Marvel Comics, usually those featuring the X-Men family of characters. Created by writer Ann Nocenti and artist Arthur Adams, Mojo first appeared in Longshot #4 (December 1985), as the titular hero's archenemy, and subsequently a villain to the X-Men and their various sub-groups as well. Mojo is one of the "Spineless Ones," an alien race that is immobile without advanced technology.
Publication history
At the time she wrote the Longshot miniseries, writer Ann Nocenti was pursuing her Master's degree at the School of International and Public Affairs, Columbia University, working at the magazine Lies of Our Times, and reading the work of writers like Marshall McLuhan, Noam Chomsky, Edward S. Herman and Walter Lippmann. Mojo, a slaver and dictator who rules his dimension through the television programs he produces, was created as a direct result of these influences. (A character named Manufactured Consent after the Chomsky book of the same name, who appeared in Nocenti's 1990 book The New Mutants Summer Special, was also born of these works.) Artist Art Adams designed the character per Nocenti's instructions that he be disgusting and unpleasant, and also tried to make him look frightening. The wires that hold Mojo's eyelids open, thus preventing him from blinking, were inspired by an interview with actor Malcolm McDowell on Late Night with David Letterman, in which McDowell revealed that the similar apparatus he had to wear for the Ludovico technique scene in A Clockwork Orange had scarred his corneas. The rest of the equipment attached to Mojo's head controls his mechanized chair.  Mojo first appeared in Longshot #4 (December 1985), and was the main villain of the miniseries, appearing in the subsequent three issues.  The character subsequently appeared in The New Mutants Annual #2 (1986). That same year, in The Uncanny X-Men Annual #10, Mojo appeared as the villain in the story, which saw Longshot join the X-Men. In 1988, Mojo appeared in a backup story in The Uncanny X-Men Annual #12. He was the main villain of the one-shot special Excalibur: Mojo Mayhem (December 1989). Subsequent appearances include Marvel Comics Presents #89 (1991), The Uncanny X-Men Annual #15 (1991), Wolverine #52 (March 1992), X-Men #6 (March 1992), Wolverine #53 (April 1992), X-Men #7 (April 1992), #10-11 (July-August 1992), The Uncanny X-Men Annual 16 (Annual 1992), Marvel Comics Presents #119 (1993), What If? #59 (March 1994), X-Men Adventures: Season Two #11 (December 1994), Marvel: Portraits of the Universe #1 (March 1995), X-Men: Mutations #1 (1996), Youngblood/X-Force #1 (July 1996), X-Force/Youngblood #1 (August 1996), X-Force #60-61 (November-December 1996), The Adventures of the X-Men #9-10 (1996-January 1997), X-Babies: Murderama #1 (January 1998), X-Force #76 (April 1998), X-Babies Reborn #1 (January 2000), X-Men Unlimited #32 (September 2001), Exiles #18-19 (December 2002-January 2003), The Uncanny X-Men #460-461 (August 2005), and Exiles #73-74 (February 2006).  Mojo was featured in an entry in the Official Handbook of the Marvel Universe Deluxe Edition #8, and in the All-New Official Handbook of the Marvel Universe A-Z #7 (2006).

Q: When was Mojo first seen?
A: Mojo first appeared in Longshot #4 (December 1985),

Q: What happened in Longshot
A: was the main villain of the miniseries, appearing in the subsequent three issues.

Q: When was he next seen
A: The character subsequently appeared in The New Mutants Annual #2 (1986).

Q: Did he appear often after that in comic books
A: The character subsequently appeared in The New Mutants Annual #2 (1986).
What did he do in the comic books
He was the main villain of the one-shot special Excalibur:
He was the main villain of the one-shot special Excalibur: