Trey Cosner was born in Warsaw, Indiana, and started acting in a variety of theatrical productions at an early age. He continued pursuing acting and Film Production at Western Michigan University in Kalamazoo, Michigan, while playing in his rock band, The Sedgwyck Agent. After years of restlessness from staying in one location, he started a life of travel, living between Mackinac Island, Michigan and San Diego, California for five years. Finally, in 2018, Trey made his move to Los Angeles, California to continue his career in acting. He now resides in Calabasas, California.