LeRoy studied at VCA for two years in the School of Drama, before leaving the College. He has worked professionally since 2000 and appeared in numerous theatre productions such as Jane Harrison's acclaimed Stolen, touring to London, Hong Kong and Tokyo; Richard Frankland's Conversations with the Dead in Ilbijerri/Playbox's Blak Inside season; Barry Dicken's Claustrophobia for La Mama and had his first classical role in Google's comical classic The Government Inspector for Hoist Theatre Company in 2003.

LeRoy was also seen in Walkabout adapted from the film by Jane Harrison and directed by Richard Frankland for Chamber Made Opera at 2003 Melbourne Festival and The Call for Melbourne's Workers Theatre. He has also volunteered his time to read for Actors for Refugees. He has taught acting at Swinburne University Indigenous Performing Arts Course.

A career highlight for LeRoy was working in the Mildura Arts Festival with the Latje Latje dance group in the production A Midsummer Night's Dreaming for the Old Van Theatre Company.