Ian Rotheroe was born in New York City and began his training at the American Ballet Theatre Jacqueline Kennedy Onassis School. He later trained for seven years at Manhattan Youth Ballet under Deborah Wingert, Brian Reeder, and Marina Stavitskaya, and completed his studies in the Pacific Northwest Ballet Professional Division program. He is currently a soloist with Ballet Idaho, where he is in his fourth season, performing featured roles in works by Justin Peck, George Balanchine, Danielle Rowe, Christopher Stowell, Garrett Anderson, and Anne Mueller.