“Well, look, I mean I'm sure you're gonna get a lot of namby-pamby animals in here saying things like, 'Oh, it's not winning, it's the taking part that counts!' Yeah, yeah, not me, pal. I'm here to win. That prize... it's mine!”
–Mike, taking part in an interview with Bob during the auditions
Mike is an anthropomorphic white mouse. He wears a red suit and a white shirt under it with red pants and a red fedora, along with a black tie and shoes. He has large white ears that are pink on the inside, and long whiskers. His pink tail is long and thin.
In Christmas-themedTV spots, Mike wore a green version of his suit with red lapels and a red tie, along with a Santa hat.
Mike is a greedy, self-centered mouse with a Napoleon style complex— and who so happens to be a classically trained jazz musician with a voice like Frank Sinatra, who allegedly studied at the Lincoln School of Music. Driven by money, power, and the allure of beautiful female mice, Mike is constantly trying to be part of a crowd that doesn’t want him... unless, that is, he can somehow win Buster’s competition.
Mike may be small but he has a big and imposing character. Arrogant almost to a fault, Mike is not afraid to stand up to anyone bigger than himself. However, he tends to bite off more than he can chew, and he is not an honest person, as he is caught cheating in a card game, swindling a trio of bears out of their money. This repeatedly came back to haunt him and affected those around him, even leading to the Moon Theater's destruction.
Despite his arrogance, Mike lives up to his skills as a singer and a musician, able to soulfully croon people to tears.
While not exactly a kind soul, Mike can appreciate others' kindness and merits, sincerely appreciating his girlfriend for saving him from the bears he'd cheated and cheering for Meena after repeatedly putting her down only to be awed by her amazing singing.
He has an ego, so confident in his talents that he assumed the prize money for Buster Moon's singing contest was guaranteed to be his that he bought a Lamborghini and spent all the money he'd swindled the bears out of, and refused to be upstaged that he came back to sing in the theater even when there was no money to be won.
Happy Holidays from SING
Mike has fun at an ice rink while "Sleigh Ride" plays. After Gunter switches the track with his holiday dance remix of "Groove Is in the Heart", he skates by Ray, coating the snail in ice.
“A penny? How dare you! I happened to have studied in the Lincoln School of Music!”
–Mike, after a baboon gives him a penny for playing the saxophone
“All right, prove it, pal! Empty your pockets right now!”
–Mike, forcing the baboon to empty his pockets for extra money
“What do you smoke outta this?”
–Mike, after looking at the baboon's inhaler
“Aha! I knew it! You all saw it! You all saw it right here! The monkey lied! And next time, pick on someone your own size, ya bully.”
–Mike, after discovering a wad of cash from the baboon
“Alright! Enough of that! That's quite enough of that. That's it. Come on. Off the stage, Helga. Go on, you're useless. Thanks.”
–Mike shooing Meena offstage after she bombs her audition
“Open it, will ya? I wanna see what a hundred thousand dollars look like!”
–Mike urging Buster Moon to open the chest so he can see the prize money
“I know Derek, the manager. He'll vouch for me! Come on!”
Mike is the only character among the main cast to not show up for the grand re-opening of the Moon Theater.
In a 2019 episode of Family Guy titled "You Can’t Handle the Booth", Mike and Sing were mentioned by Peter Griffin as a meta joke about Seth MacFarlane’s other roles in film and television. This is one of the first occurrences of Sing being referenced in a television show.
The episode itself featured the characters overdubbing a previous episode in the style of DVD commentary, and when Seth MacFarlane himself comes into the audio, his character Peter Griffin says “It's the mouse from Sing! I’d recognize your voice anywhere!”
This link leads to the image gallery for Mike. It can be viewed here.
↑Murray, Rebecca (December 21, 2016). 'Sing' Movie Review: Finishes Up 2016 on a High Note. ShowbizJunkies. Retrieved on July 19, 2018. “"Mike the mouse is on the run from mobsters while Ash the porcupine is dealing with trying to stay true to herself and let her talent shine through."”