Anger is one of the many emotions controlling Riley Andersen's mind. He lives in her brain and works with the other emotions. When the leader, Joy and another emotion, Sadness, literally get lost in Riley's mind, he and the others have to keep Riley's head on straight until they get home. Next to Joy, he may be the most abrasive to Sadness.
Anger is introduced when Mr. Andersen tells a young Riley she can't have dessert if she doesn't eat her broccoli. He is enraged but calms down when Riley's dad says the broccoli is an airplane. When Riley and her family move to San Fransisco, Anger, along with the other emotions, is disappointed when he sees their new home and creates some negative memories. He lightens up when Joy starts coming up with ideas on how to decorate the place, but is infuriated when they find out the moving van with all of their belongings hasn't arrived yet.
When Riley's dad leaves for work, Joy suggests that they get pizza. Upon realizing there's broccoli on the pizza, Anger has a small outburst and claims that San Francisco has ruined pizza, much like the Hawaiians. When Sadness starts touching the memories Anger is worried. On the first day of school, Anger is skeptical. Things seem to be going swell until Sadness touches a memory once again, much to Anger's annoyance. The emotions start to panic and Anger attempts to help Joy get rid of the sad memory, but to no avail. Unfortunately, Sadness and Joy get sucked away along with the core memories, and Anger asks if he's allowed to say "that curse word" now.
While Joy and Sadness are on their way back to the Headquarters, Fear, Disgust and Anger try to fix everything. They try tampering with the core memories and replicating Joy's behavior, but they find themselves unable to make her happy. And to make things worse, they can't seem to get rid of the notoriously catchy Tripledent Gum tune. When Riley discovers that her friend Meg has replaced her on the hockey team, Anger causes her to feel betrayed and stop talking to Meg.
Sooner or later Anger has an self-proclaimed brilliant idea; since Riley's happy core memories were from Minnesota, Anger suggests that she should run away and return to her original home. Disgust and Fear are not great fans of this plan, but Anger doesn't budge. Fear suggests that Riley should go to sleep, but when she wakes up because of a nightmare, Anger takes matters into his own hands and goes through with his plan. Fear asks if he's serious about this, and he coldly implies that it's the only way to make Riley happy.
They soon grasp that Riley simply can't afford to get back to Minnesota, so the scheming Anger makes Riley steal her mother's credit card, leading to the destruction of Honesty Island. On their way to the bus, Anger realizes that he's destroying Riley's mind and finally snaps out of his determination and exclaims this is madness. He tries to stop Riley, but she cannot be controlled. The 3 emotions panic, but Joy and Sadness show up to save them. However, a thick window separates them from each other, and Anger desperately tries to break it using brute strength. When this fails, Disgust has an idea and starts insulting his intelligence. Anger is aggravated and his head goes up in a huge flame which Disgust uses as a blowtorch to help Joy and Sadness climb through the window.
Anger anxiously explains everything to Joy, but to everyone's surprise, she simply tells Sadness to take control of Riley. Sadness uses the remaining functional button to let Riley know that sometimes you need sadness to cope with difficult situations. Armed with this knowledge, Riley runs back to her parents to talk about her issues. Anger is impressed by this and presumably learns to accept Sadness as an important emotion. As Riley grows up, new core memories and Personality Islands are created, and with the updated console Anger has access to the entire curse word library. Anger gleefully yells: "This console is the -" before being interrupted by a loud beeping noise as a result of Fear toying with the new buttons. During a hockey match, Anger admits mom and dad are pretty cool.
Anger, along with the other emotions, continues to help Riley as she grows up. [Source: wikia]
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