cast
Series Regulars
Chris O'Dowd
as William Rackham
Gillian Anderson
as Mrs. Castaway
Shirley Henderson
as Mrs. Emmeline Fox
Alan Williams
as Colonel Leek
Romola Garai
as Sugar
Mark Gatiss
as Henry Rackham Jr.
Richard E. Grant
as Doctor Curlew
Bertie Carvel
as Ashwell
Liz White
as Caroline
Amanda Hale
as Mrs. Agnes Rackham
Blake Ritson
as Bodley