Originally from Toronto, Canada, Shayna has been performing onstage in plays and musicals since she was 11 years old. Notable theatre appearances include roles in King Lear and The Tempest with Hamilton Urban Theatre, Julius Caesar and King Lear with Hart House Theatre, Assassins with the UC Follies, and more recently Richard O'Brien's The Rocky Horror Show, Macbeth, The Two Gentlemen of Verona, and The Good Person of Szechwan with Tokyo International Players.
She also originated the roles of Hannah in the theatrical production of Ivy Alvarez's book of poems, Disturbance and Mother Superior Mary Miller in リブレセン's 私にラブソングを:J．sister ACT . Shayna has appeared on screen in numerous internationally-recognized short films and web series, and works as a voice actor, motion-capture performer, and singer for TV and radio programs across Japan. Shayna trained at George Brown College and the Stratford Shakespeare School in Ontario.