The play is based on a meeting between Alice Liddell Hargreaves and Peter Llewellyn Davies at the opening of a Lewis Carroll exhibition in 1932, the original Alice in Wonderland come face to face with the original Peter Pan. The play sees enchantment and reality collide as this brief encounter lays bare the lives of these two characters.
- Ben Whishaw as Peter Llewelyn Davies
- Judi Dench as Alice Liddell Hargreaves
- Nicholas Farrell as Lewis Carroll
- Derek Riddell as J.M. Barrie
- Olly Alexander as Peter Pan
- Ruby Bentall as Alice in Wonderland
- Stefano Braschi as Arthur Llewelyn Davies / Reginald Hargreaves / Michael Llewelyn Davies
Understudies include Stefano Braschi for Peter Llewelyn Davies; Georgina Beedle for Alice in Wonderland; Henry Everett for both Lewis Carroll and J.M. Barrie; Christoper Leveaux for Peter Pan, Arthur Llewelyn Davies, Reginald Hargreaves and Michael Llewelyn Davies; and Pamela Merrick for Alice Liddell Hargreaves.