An American gets a ticket for an audience participation game in London, then gets involved in a case of mistaken identity. As an international plot unravels around him, he thinks it's all part of the act.
Bill Murray
as Wallace Ritchie
Peter Gallagher
as James Ritchie
Joanne Whalley
as Lori
Alfred Molina
as Boris
Richard Wilson
as Daggenhurst
John Standing
as Embleton
Simon Chandler
as Hawkins
Geraldine James
as Ludmilla Kropotkin
Anna Chancellor
as Barbara Ritchie
Nicholas Woodeson
as Sergei
Cliff Parisi
as Uri
John Thomson
as Dimitri