Taron Egerton as Gary "Eggsy" Unwin

Colin Firth as Harry Hart / Galahad

Julianne Moore as Poppy Adams

Mark Strong as Hamish Mycroft / Merlin

Hanna Alström as Princess Tilde

Halle Berry as Ginger Ale

Pedro Pascal as Jack Daniels / Whiskey

Channing Tatum as Tequila

Edward Holcroft as Charlie Hesketh

Jeff Bridges as Champ

Emily Watson as Chief of Staff Fox

Sophie Cookson as Roxanne "Roxy" Morton / Lancelot

Michael Gambon as Arthur

Elton John as Elton John

Bruce Greenwood as President of the United States

Thomas Turgoose as Liam

Calvin Demba as Brandon

Tobi Bakare as Jamal

Gordon Alexander as Kingsman's Cab Driver

Keith Allen as Charles

Tom Benedict Knight as Angel

Poppy Delevingne as Clara Von Gluckfberg

Björn Granath as The King of Sweden

Lena Endre as The Queen of Sweden

Samantha Coughlan as Tour Guide

Martyn Ford as Glastonbury Guard

Grant Gillespie as Hotel Receptionist

Tara Hugo as Kentucky Barmaid

Nicholas Colicos as Very Drunk Redneck

Jordan Mifsud as Patient One

Kaye Brown as Patient Two

Paul Giddings as Patient Three

Iain McKee as Poppy's Antidote Doctor

Mark Arnold as General McCoy

Shannon Bream as FOX News Anchor

James Carroll Jordan as Harvard Professor

Bill Hemmer as FOX News Anchor

Stacey Swift as Hospital Doctor

Alessandro De Marco as Cable Car Attendant

Antonio Magro as Confused Guard

Stephen Schreiber as Elderly Patient 1

Count Prince Miller as Elderly Patient 2

Jeff Ricketts as Poppy's Attorney

Joe Gallina as Poppy's Security Gate Guard

Ammara Niwaz as Agent Whiskey's Wife

Mingus Johnston as First Burly Guard

Samantha Womack as Michelle Unwin

James Clayton as Kingsman Knight

Bimbo Hart as Kingsman Knight

Chester King as Kingsman Knight

Alastair MacIntosh as Kingsman Knight

Max Macintosh as Kingsman Knight

Tom Parker Bowles as Kingsman Knight

Carlos Peres as Kingsman Knight

Grant Crookes as Paramedic (uncredited)

Rene Costa as Security (uncredited)

Al Fenderico as Royal Swedish Grenadier (uncredited)