- Understudied Peter Scanavino's lead character "Marcus G." in the World Premiere play "Yellow Face" written by Tony Award winning playwright, David H. Hwang, at the Mark Taper Forum in Los Angeles. May 10-July 1, 2007.
- (June 2006) : Reprised his role as Billy Bibbitt in "One Flew Over the Cuckoo's Nest" play by Ken Kesey, Directed by Jenny Sullivan (Rubicon Theatre, Ventura, California, USA).
- (June 2005) : Played Billy Bibbitt in "One Flew Over the Cuckoo's Nest" play by Ken Kesey, Directed by Macario Gaxiola (The Theatre District at the Cast Theatre, Hollywood, California, USA).
- (2002 to Present) Along with his husband, actor/singer Shawn Ryan, John co-founded and operates the Young Actors' Theatre Camp. Located in the San Francisco Bay Area, YATC is an overnight co-educational theatre camp for kids ages 8-18 that offers a safe and nurturing environment allowing all students, regardless of experience, the opportunity to explore, discover and develop a life in the performing arts.