Described in-game as intelligent, determined, and persuasive, Mike is known among the survivors for being promiscuous, and seems to "love women" despite his hate for commitment, and is very popular with them. He is a man of action, and is usually the first to volunteer and make suggestions.
According to a hallucination of Dr. Hill, Mike has a fear of Isolation despite being on his own more than any other character in the game. However, this could just be a misrepresentation of Mike from the patient's perspective. It should be noted Mike may have a fear of misfortune towards his friends or them turning against him or each other. This can be supported by the fact he fears the idea of Emily becoming a Wendigo, he is considers Chris unreliable after Chris knocks out Josh, he expresses disbelief at the idea of Hannah cannibalising Beth and is shown also seems to harbour a slight martyr complex declaring that he will keep his friends safe and will risk himself to go to the Wendigos lair alone.
Mike initially comes across as being self-absorbed, somewhat vain, immature and an all round stereotypical 'jock'. However, over the events of the game he emerges as a brave and resourceful young man, putting his own life at risk to help his friends and trying to ensure the others' survival.