Born in Fridley, Minnesota, Sielaff grew up with parents Brad and Dorrie, his older brother Mark, and a fluffy bichon frise named Ozzie (RIP). After graduating from Fridley High School, he attended Gustavus Adolphus College and majored in Religious Studies, minored in Theatre, co-hosted a radio show, performed/wrote with the social justice theatre troupe I Am We Are, and studied a semester in India. In the fall of 2009, Michael moved to Los Angeles to pursue storytelling as a career. Besides acting in over 100 TV, film, commercial, and internet productions, he performs children's theater with Story Pirates and adult-children's theater on various improv teams. Sielaff is the founder and an active teacher/member of Rogue Improv and Laughtivism LA. He also plays alto sax, writes spoken word poetry, and considers himself the best 6' 7" freelance dancer in town.