A member of the Mohawk Nation, Bomberry trained as an Actress at Toronto's Native Theatre School in 1986 and Ryerson University in 1988. Her first credited appearance was a minor role in the 1989 television film Where the Spirit Lives. She also appeared in the 1993 adaptation of the novel Medicine River. From 1992 to 1997, she portayed Rosie Deela in North of 60 and its three follow-up films: In the Blue Ground (1999), Another Country (2003), and Distant Drumming (2005).