Simon Russell Beale:    King Arthur                           
Hannah Waddingham:      The Lady of the Lake
Michael Burgen:        Patsy
Robin Armstrong:       Sir Belvedere / Mrs. Galahad / Concorde / Guard
Rob Delaney:           Sir Robin / Mayor / Guard
Adam Ellis:            Prince Herbert / Historian / Not dead Fred / Minstrel
Graham MacDuff:        Sir Lancelot / French Taunter / Knight of Ni / Tim the Enchanter
Jon Robyns:            Sir Dennis Galahad / Black Knight / Prince Herbert's Father
Eric Idle (as video):  God
Chris Jenkins:         Ensemble
Rachel Knowles:        Ensemble
Hannah Malekzad:       Ensemble
James Nelson:          Ensemble
Amelia Adams-Pearce:   Swings
Graham Newell:         Swings
Matthew Russell-Jones: Swings