Problem: Background: Dr. Victor Von Doom (commonly known as Doctor Doom, or simply Doom) is a fictional character appearing in American comic books published by Marvel Comics. The son of a Romani witch, Von Doom has been depicted as a supervillain, the archenemy of the Fantastic Four, and the leader of the fictional nation called Latveria. While his chief opponents have been the Fantastic Four, he has also come into conflict with Spider-Man, Iron Man, Black Panther, and multiple others. Von Doom has also been depicted as a superhero, being the third character to take up the mantle of Iron Man and joining the Avengers.
Context: In 1976, Marvel and DC Comics collaborated on Superman vs. the Amazing Spider-Man, and seeking to replicate that success the two companies again teamed the characters in Superman and Spider-Man in 1981. Marvel editor in chief Jim Shooter co-wrote the story with Marv Wolfman, and recalled choosing Victor von Doom based on his iconic status: "I figured I needed the heaviest-duty bad guy we had to offer -- Doctor Doom. Their greatest hero against our greatest villain."  The same year, John Byrne began his six-year run writing and illustrating Fantastic Four, sparking a "second golden age" for the title but also attempting to "turn the clock back [...] get back and see fresh what it was that made the book great at its inception." Doctor Doom made his first appearance under Byrne's tenure with issue #236. Whereas Kirby had intimated that Doom's disfigurement was more a figment of Victor's vain personality, Byrne decided that Doom's face was truly ravaged: only Doom's own robot slaves are allowed to see the monarch without his helmet. Byrne emphasized other aspects of Doom's personality; despite his ruthless nature, Victor von Doom is a man of honor. Returning to Latveria after being temporarily deposed, Doctor Doom abandons a scheme to wrest mystical secrets from Doctor Strange in order to oversee his land's reconstruction. Despite a tempestuous temper, Doom occasionally shows warmth and empathy to others; he tries to free his mother from Mephisto and treats Kristoff Vernard like his own son. Byrne gave further detail regarding Doom's scarring: Byrne introduced the idea that the accident at Empire State University only left Victor with a small scar that was exaggerated into a more disfiguring accident by Doom's own arrogance--by donning his newly forged face mask before it had fully cooled, he caused massive irreparable damage.  After Byrne's departure Doom continued to be a major villain in Fantastic Four, and as the 1980s continued Doom appeared in other comics such as Punisher, The Spectacular Spider-Man, and Excalibur. Under Fantastic Four writer Steven Englehart, Doom became exiled from Latveria by his heir Kristoff, who was brainwashed into thinking he was Victor von Doom. Doom would spend most of his time in exile planning his return, but Englehart left the title before he could resolve the storyline. This storyline ultimately ended with the controversial Fantastic Four #350, where writer Walt Simonson had the Victor von Doom who had been seen in the book during the Englehart run being revealed to be a robotic imposter and the real Von Doom, in a newly redesigned armor, returning to claim his country from his usurper. According to Simonson's retcon, the last appearance of the real Victor von Doom was in the "Battle of the Baxter Building" story arc, but Simonson's interpretation of the character was unaware of certain major changes at the time to the Fantastic Four. Simonson drew up a list of stories which featured the real Doom and those which did not but later writers ignored Simonson's choices, retconning these story elements as an attempt by Doom to blame his own past failures on unruly robots.
Question: WHich other comics did Doom appear in?
Answer: Punisher, The Spectacular Spider-Man, and Excalibur.

Background: Joaquin Rafael Phoenix (; ne Bottom; born October 28, 1974) is an American actor, producer, and activist. For his work as an actor, Phoenix has received a Grammy Award, a Golden Globe Award, and has three Academy Award and British Academy Film Award nominations. Phoenix started acting in television shows with his brother River Phoenix and sister Summer Phoenix.
Context: During the comeback portion of his career, Phoenix went back to his given name Joaquin and was often cast in supporting roles as conflicted, insecure characters with a dark side. In 1995, he co-starred in To Die For, as the disturbed young man Jimmy who gets seduced by Suzanne Stone (Nicole Kidman) to commit murder. Directed by Gus Van Sant, the film was screened out of competition at the 1995 Cannes Film Festival and became a financial and critical success, resulting in a domestic box office total of $21 million. New York Times critic Janet Maslin praised Phoenix's performance, writing "So pity poor Jimmy. Rivetingly played by Mr. Phoenix with a raw, anguished expressiveness that makes him an actor to watch for, Jimmy is both tempted and terrified by Suzanne's slick amorality. In that, he speaks for us all."  In 1997, Phoenix played a small-town troublemaker in Oliver Stone's U Turn, and a poor man in love with a rich woman in Inventing the Abbotts. The films were received with mostly mixed and negative reviews, respectively, and neither performed well at the box office.  The following year, Phoenix starred in Clay Pigeons (1998) as a young man in a small town who befriends a serial killer. Budgeted at $8 million, the film became a box office flop, grossing only $1 million and was, like Phoenix's previous projects, not well received by critics.  In his next film, 8mm (1999), Phoenix co-starred as an adult video store employee who helps Tom Welles (Nicolas Cage) penetrate the underworld of illegal pornography. The film turned out be a box office success, grossing $96 million worldwide, but found few admirers among critics.
Question: Why did Phoenix have to make a return to acting?
Answer:
Phoenix went back to his given name Joaquin and was often cast in supporting roles as conflicted, insecure characters with a dark side.