I Swear
22/09/2025
Inspired by the life of John Davidson, charting his journey from a misunderstood teenager in 1980's Britain to a present day advocate for the understanding and acceptance of Tourette Syndrome. Diagnosed aged fifteen, John navigates his way against the odds through troubled teenage years and into adulthood, finding inspiration in the kindness of others to discover his true purpose in life.
Movie Information
Robert Aramayo
as John Davidson
Maxine Peake
as Dottie Achenbach
Shirley Henderson
as Heather Davidson
Peter Mullan
as Tommy Trotter
Scott Ellis Watson
as Young John Davidson
Sanjeev Kohli
as Shopkeeper
Ron Donachie
as Headmaster
Steven Cree
as David Davidson
Paul Donnelly
as Billy Dean
Douglas Rankine
as Doctor Colin Hargreaves
Adam McNamara
as PC/Inspector MacCullen
David Carlyle
as Chris Achenbach
Anthony Capaldi
as Andy
Andrea Bisset
as Lucy
Francesco Piacentini-Smith
as Murray
Louise Stewart
as Caroline
Leah MacRae
as Mrs Robinson
Christina Modestou
as Alison
Catriona McArthur
as Sharon Davidson
Isla Mercer
as Young Caroline
Jamie McAllister
as Young Murray
Jamie Marie Leary
as Irene
Amber Sylvia Edwards
as Marie
Paul Cassidy
as Allan
Gary French
as Procurator Fiscal
Thierry Mabonga
as Defence Agent
Gordon Peaston
as Councillor Spalding
Ruth Milne
as Karen
Carolina Valdés
as Barbara
Emma Hartley-Miller
as Woman on Train
Greg Storey
as Self
Paul Stevenson
as Self
Chris Dixon
as James
Andrew McPhail
as James' friend
Malcolm McFadyen
as Police Officer
Christina Ashford
as Queen Elizabeth II
Donald Morrison
as Priest
Gordon Morris
as Queen's Speaker
Jason Alan Staines
as Doctor
Cerys Tinney
as Girl
Paddy Towers
as Lad 1
Kendal Sheridan McKinlay
as Barmaid
Ellie Macdowall
as Girl
Michael Dylan
as Butler
Calum Cormack
as Bouncer
Michael Cooke
as Journalist
Johnny Milne
as Self
Alan Morton
as Self
Frankie Morton
as Self
Karen Barke
as
Johnny Austin
as Journalist
Simon Charnley
as Police Officer
Ross Mann
as Journalist
Connor Parkin
as Roddy
