|Voice actors||(Ja:) Yuji Tanaka|
(En:) Carlos Alazraqui 
|Game||Kingdom Hearts III|
|Kingdom Hearts III|
|Monsters, Inc. (2001)|
An employee at Monsters, Incorporated and Sulley's best buddy since college. He cares for Boo like one of his own.
- "For the record, I still get the most laughs!"
Mike Wazowski is a top-jokester and former station runner and coach of Sulley on the scare floor introduced in Kingdom Hearts III. He originated in the Disney/Pixar film Monsters, Inc. He is a friend of Sulley.
Before Kingdom Hearts III
Kingdom Hearts III
During one of their play dates with Boo, Sulley and Mike discover Sora, Donald, and Goofy entering the factory. Mike initially tries to make an excuse on why Boo is here, but Sora accuses them of scaring her. He denies the accusation, stating that they are done relying on scare power. After settling the misunderstanding, they introduce themselves to the trio just as the Unversed appear, frightening Boo. Mike and Sulley help the others fend off the Unversed. With the situation growing dangerous, Mike convinces Sulley to return Boo home, which he agrees. As they arrive at the Laugh Floor, they discover the Unversed are entering children's doors, collecting their scream energy.
After defeating the Unversed, Mike and the others go through the Door Vault to chase after Boo's door. However, the group ends up getting lost in the Factory due to Randall's manipulation of factory equipment. When Randall hijacks the factory control system, Mike and Sulley protect Boo from harm while the others evade and shut down Randall's traps. The team arrives at the central control unit, where Sulley suggest making Boo laugh to short-circuit the device. Mike tries to make her laugh but his jokes fall short, as no one understands them. With Sora's help, they succeed in making Boo laugh, which opens the passage through the power plant.
When entering the power plant, they discover the Heartless and Unversed have started a fire throughout the station. With help from the CDA Agents, the fire is put out. As the group arrives at the Door Vault, the team is intercepted by Randall, who unleashes devices, which Mike dismisses after its previous failure. However, the device transforms into the Lump of Horror, which forces the group to battle the Unversed. When the Unversed is defeated, Mike signals Sulley to subdue Randall, forcing him back to the human world. After Sora seals Randall's door, they prepare to send Boo home. To their surprise, they, along with the door, are pulled to the Laugh Floor.
When they arrive, they are confronted by Vanitas, who Sulley and Mike realized was the one who brought Randall into command. Mike angrily states how the Unversed have been ruining their company, but is held back by Sulley. As Vanitas prepares to extract Ventus from Sora's heart, Sulley appears behind him, holding him in place. Mike prepares several doors, with Sulley throwing Vanitas into them before shredding the final door, preventing his return. Afterwards, Mike says goodbye to Boo before she returns home. Returning to the Lobby, Sulley and Mike bid farewell to Sora, Donald, and Goofy, wishing them well with Mike stating he still holds the best laughs.
Sometime after Xehanort's defeat, Mike tries to scare Sulley from behind, but stops when he sees that Sulley is holding a sleeping Boo, and smiles. He and Sulley take Boo back to her bedroom door and watch her sleeping before closing the door quietly.
Mike is a short green monster with thin arms and legs. He has one giant turquoise eye and miniature horns.
Befitting the size of his mouth, Mike tends to be very vocal and loud. He tends to speak before thinking, often having to correct himself when he fumbles and says the opposite of what he means. Mike possesses a sense of humor that tends to go over the heads of children (which he doesn't seem to understand), as he tries making a joke about losing a contact to make Boo laugh. Regardless, Mike is a quick thinking and one of the top laugh collectors at Monster's Inc. He thinks about Sulley's image as the president of the company a lot, when his friend doesn't.
Kingdom Hearts III
Mike is a party member that focuses on using skills and spells that benefits himself and his allies for a set duration. While executing his abilities, he remains immobile and may be vulnerable to enemy attacks unless Sora intervenes. In contrast to Sulley's abilities that focus more on offensive attacks, roars and pounces, Mike buffs his allies endlessly until he runs out of MP. Sora could also use a joint attack alongside the two monsters to throw Mike as a bowling ball towards an enemy to deal small damage that lasts for quite a while.
|Foolish Attack (ずっこけアタック
Zukkoke Atakku )
|Rolls and charges at the target. If you collide with an enemy or obstacle, you are flung away and the attack ends.|
|Jump Headbutt (ジャンプ頭突き
Janpu Zudzuki )
|Leaps toward the target and headbutts it.|
|Surrounding enemies target you for 15–20 seconds or until you are struck. MP Cost: 10|
|For 15–20 seconds or until struck, all teammates deal 50% more damage with their attacks and are provided immunity to status effects. Removes negative status effects when applied. MP Cost: 15|
|Treasure Magnet||1||Automatically draw in and collect nearby prizes. Stack the ability to increase the effect.|
|MP Walker||1||Recover MP as you walk or run. MP recharging speed remains unchanged. Stack the ability to increase the effect.|
|MP Haste||3||Recharge MP 10% faster when you run out. Stack the ability to increase the effect.|
|More Team Attacks||5||Generate team attack commands more often.|
|Team Attack Extender||3||Extend the availability period of team attack commands.|
|Team Effort||50||Always start battles with a team attack command. (Unequipped by default)|
|Hyper Healing||3||Spring back from defeat in battle more quickly and with more HP. Stack the ability to increase the effect.|
Michael "Mike" Wazowski first appeared in the 2001 film Monsters, Inc., voiced by Billy Crystal. He is Sulley's station runner and coach on the scare floor at Monsters, Inc. One day, a girl sneaks into the facility. Mike discovers Sulley is keeping her a secret and wishes for Sulley to get rid of her. Mike is also seeking a love life with another monster named Celia Mae.
Mike later appeared in the film's 2013 prequel, Monsters University, which detailed how he and Sulley first met in college, a fact alluded to in his Kingdom Hearts III journal entry.