Madfabulous

Callum Scott Howells

as Henry Cyril Paget, 5th Marquess of Anglesey

Ruby Stokes

as Lily

Rupert Everett

as Gelert

Paul Rhys

as Lord Penrhyn

Louis Hynes

as Neville

Louise Brealey

as Lady Chetwynd

Tom Rhys Harries

as Nick Durant

Siobhán McSweeney

as Blanche

Guillaume Gallienne

as William

Steve Speirs

as Morris Price

Kevin Eldon

as John Wickens

Ian Puleston-Davies

as Mr Davies

Roger Evans

as Mr Tailor

Julian Lewis Jones

as Viscount of Gwynedd

Kate Drew

as Viscountess of Gwynedd

Leisa Gwenllian

as Clara

Michael Hill

as Emrys

Clara Paget

as Mabel

Anthony O'Donnell

as Mr Spinks

Ben Crystal

as Mr Thomas

John Pierce Jones

as Dr Roberts

Lisa Jên Brown

as Miss Jones