Andrew Scott

as (voice)

as Alex

as Jack Frost (voice)

as Ian Charleson

as Brian(1 ep)

as James Stagg

as Lee Ross

as Richard Rodgers

as Jim Wenlich Rice(2 eps)

as Baron

as Tom Ripley(8 eps)

as Self

as Ivan / Sonya / Michael / Helena / Alexander / Maureen / Liam / Elizabeth

as Self

as Self(1 ep)

as Adam

as Self

as Lord Rollo

as Terje Rød-Larsen

as Lord Merlin(3 eps)

as Narrator(6 eps)

as Elias

as Patrick

as Lieutenant Leslie

as Garry Essendine

as John Parry(7 eps)

as Tobin(1 ep)

as Donald Devlin

as Edgar

as Chris

as Hamlet

as Charles Dickens(1 ep)

as Dan Sherry

as Narrator(104 eps)

as Vernon

as Anthony Julius

as Narrator (voice)(4 eps)

as Lazlov

as Sean

as The Priest(6 eps)

as Addison Bennett

as Professor Moriarty

as Inspector Turpin

as C

as Self - Guest(1 ep)

as Self(2 eps)

as Gethin

as Self

as Father Seamus

as Donal (voice)

as Self - Guest(2 eps)

as Himself / Jim Moriarty

as Viktor Koslov

as Davin

as Christian(1 ep)

as Mark Nicholas(3 eps)

as Paul

as Dalien Bevan(3 eps)

as King Louis(1 ep)

as Alex

as Chris Gillhaney(1 ep)

as Hart Elliot-Hinwood

as Paul McCartney

as Jake

as Jim Moriarty(8 eps)

as Laevsky

as Captain Robert Jones(1 ep)

as Barry

as Colonel William Smith(7 eps)

as Self(2 eps)

as Brandon Wallick(2 eps)

as Vernon

as Jones(6 eps)

as Tommy McGann

as Sniper

as Self - Guest(1 ep)

as James Devereaux(1 ep)

as John D. Hall(1 ep)

as Michael Bodkin

as John Campbell

as John Campbell(1 ep)

as Danny

as Valentin de Bellegarde

as Soldier on the Beach

as Michael Grunbaum

as Paul

as Eamon Doyle

as Child in classroom

as Self - Clue Presenter(1 ep)

as Narrator(1 ep)

as Self(1 ep)

as Self - Nominee(1 ep)