Broadway theatre | West End theatre | musical theatre | Royal National Theatre | theatre | Royal Court Theatre | American Ballet Theatre | Musical theatre | National Theatre | Theatre Royal, Drury Lane | Bolshoi Theatre | Abbey Theatre | Haymarket Theatre | Theatre Royal | Play (theatre) | Globe Theatre | The Citadel, The Military College of South Carolina | Theatre | Mariinsky Theatre | Manhattan Theatre Club | Lyric Theatre | Théâtre du Châtelet | Her Majesty's Theatre | Grand Théâtre de Genève | The Citadel | Théâtre des Champs-Élysées | Theatre 625 | Goodman Theatre | Sydney Theatre Company | Lyceum Theatre, London |
He has worked at most of Edmonton's theatres, including the Citadel Theatre (Burn This, Hello Dolly and Little Shop of Horrors - for which he won his third Elizabeth Sterling Haynes Award), Theatre Network (Habitat), Shadow Theatre (Almost Maine), Edmonton Opera (South Pacific and HMS Pinafore) as well as with playwrights Marty Chan, Conni Massing, Lyle Victor Albert, Raymond Storey, Doug Curtis, Jocelyn Ahlf, Cathleen Rootsaert and Belinda Cornish.
Matthew Spangler's plays have been produced by the San Jose Repertory Theatre, Arizona Theatre Company, Actors Theatre of Louisville, Cleveland Play House, San Diego Repertory Theatre, New Repertory Theatre, Theatre Calgary, Citadel Theatre, La Jolla Playhouse (staged reading), the Nottingham Playhouse, Liverpool Playhouse, Brighton Festival, the National Steinbeck Center, the Edinburgh Fringe Festival, and the Avignon Theatre Festival, in addition to other theatres and festivals.
In September 2009 he starred in the Dora Award Nominated Mimi: The Poisoners Comedy at the Tarragon Theatre and then returned to the Citadel Theatre in 2011 playing Quasimodo in Catalyst Theatre's production of Hunchback, a role that he would reprise in Vancouver in 2012.