Mike was a guy in a fraternity at Marcie St. Claire's college and a friend of hers. He was seen at a party she invited the gang to, meeting Steve Sanders, Dylan McKay, Brenda Walsh, and Donna Martin. He was kind of goofy as he greeted them, clearly annoying Dylan.
When Brandon Walsh showed up to the blue-themed party in red, he started to confront Brandon, but Marcie told him not to worry. he was later seen catching popcorn pieces with his mouth to cheers as Donna threw them in the air. Marcie mentioned that his parents owned half of Orange County.