Upon graduation he spent five years as a member of the Richard Morse Mime Theatre at their Greenwich Village location, and performed with them at Lincoln Center, as well as touring the United States.

Other New York performing credits include the original Broadway casts of: Ain’t Broadway Grand, Rags, Anna Karenina, Barnum (first national tour) and Ragtime (final Toronto workshop); and original Off-Broadway casts of: Return to the Forbidden Planet, The Petrified Prince at the Public Theatre, Jacques Brel is Alive and Well and Living in Paris, and A Fine and Private Place, which he also directed.

[15] In New York City, he is widely known for his off-Broadway work: he directed the original production of Andrew Lippa’s The Wild Party at the Manhattan Theatre Club starring Idina Menzel, Taye Diggs, Brian Darcy James and Julia Murney.

[17][26] Internationally, Gabriel Barre has directed the world premiere of Frank Wildhorn’s adaptation of Carmen, which has just celebrated its 10th year anniversary of a sold-out run at the Karlin Theater in Prague, Czech Republic, starring Lucie Bila.

[33][34][35][36][37][38][39][40][41] In Mexico, he recently directed the non-replica Mexican premiere production of Billy Elliot,[42] which was nominated and won numerous awards including LAS LUNAS DEL AUDITORIO for BEST MUSICAL 2018.

His production of Billy Elliot also received 12 nominations, including Best Musical and Best Direction from Los Premios Metropolitanos de teatro, winning five awards, in 2018.

His greatest influences as a director come from working as an actor with Graciela Daniela, Anne Bogart, Tom O'Horgan and Hal Prince, and alongside Geraldine Page and others at the Mirror Repertory Company, as well as his training with Sir Ian Richardson and Herbert Machiz.