| Title | Role | Theatre | Notes |
| The White Whale | Pip | Leeds Dock | Open-air staging of an adaptation of Herman Melville's Moby Dick, written by the award-winning playwright James Phillips |
| Road | Brink/Skin-Lad, Blowpipe, Soldier, Father's voice, and Barry | Warwick Arts Centre at the University of Warwick | A Warwick University Drama Society production, staged in 2014, of Jim Cartwright's multiple award-winning play, first staged in 1986 at the Royal Court Theatre in London. It is set in an anonymous road in a deprived, working class area of Lancashire during the Thatcher era, at a time of high unemployment in Northern England. Imrie won the casting agency Spotlight's Most Promising Actor Award for his roles in the play at The Sunday Times' National Student Drama Festival in 2014. |
| Richard II | Bagot | Shakespeare's Globe | Part of the Globe's "Justice and Mercy" season (2015) |
| Nell Gwynn | Ned Spigett | Shakespeare's Globe | Part of the Globe's "Justice and Mercy" season (2015) |
| As You Like It | Jaques | POSK Theatre | |
| The Cherry Orchard | Trofimov | LAMDA Linbury Studio | |
| Uncle Vanya | Vanya | LAMDA | |
| Pogo (A Punk's Progress) | Various | |
| The Rivals | Jack Absolute | |
| 'Tis Pity She's a Whore | Giovanni | |
| Motortown | Lee | |