Characters played by Warren Brown
Captain Matthew Webb
Characters played by Steve Oram
Professor Fred Beckwith
Characters played by Georgia Maguire
Agnes Beckwith
Characters played by Terry Mynott
Captain Paul Boyton
Characters played by Tom Stourton
J. B. Johnson
Characters played by Hannah Tointon
Madeline Chaddock
Characters played by Keira Malik
Meg
Characters played by Maxim Reston
Dr. Thomas Webb
Characters played by Siân Rose Bennett
Wife of Bruiser Bill
Characters played by Alex Britton
Ned the henchman
Characters played by Tom Cheshire
Bob the sailor
Characters played by Jonathan Christie
Doctor
Characters played by William Donaldson
Shop Keeper
Characters played by Jack Fishburn
George the Rower
Characters played by Charlotte Gallagher
Mrs. Keyes