Meryl Streep
as Donna Sheridan

Amanda Seyfried
as Sophie Sheridan

Pierce Brosnan
as Sam Carmichael

Colin Firth
as Harry Bright

Stellan Skarsgård
as Bill Anderson

Julie Walters
as Rosie Mulligan

Dominic Cooper
as Sky Rymand

Christine Baranski
as Tanya Chesham-Leigh

Niall Buggy
as Father Alex

Chris Jarvis
as Eddie

Ashley Lilley
as Ali

Rachel McDowall
as Lisa

Philip Michael
as Pepper

Juan Pablo Di Pace
as Petros

Enzo Squillino Jr.
as Gregoris

Ricardo Montez
as Stavros

Benny Andersson
as Piano Player on Boat (uncredited)

Spencer Kayden
as Agnes - Dancer (uncredited)

Björn Ulvaeus
as Greek God (uncredited)

Rita Wilson
as Greek Goddess (uncredited)

Nancy Baldwin
as Sam's PA

Heather Emmanuel
as Harry's Housekeeper

Colin Davis
as Harry's Driver

Mia Soteriou
as Arina

George Georgiou
as Panos

Hemi Yeroham
as Dimitri

Maria Lopiano
as Ione

Norma Atallah
as Irini

Myra McFadyen
as Elena

Leonie Hill
as Ariana

Jane Foufas
as Elpida

Karl Bowe
as Stag

Celestina Banjo
as Hen

Emrhys Cooper
as Stag

Maria Despina
as Hen

Gareth Davis
as Stag

Charlotte Habib
as Hen

Gareth Derrick
as Stag

Jennifer Leung
as Hen

Kage Douglas
as Stag

Lydia Louisa
as Hen

Phillip Dzwonkiewicz
as Stag

Kristina MacMillan
as Hen

Tommy Franzen
as Stag

Lauri Owen
as Hen

Tom Goodall
as Stag

Joanne Sandi
as Hen

Aykut Hilmi
as Stag

Christie Saunders
as Hen

Jamie Hughes-Ward
as Stag

Emma Slater
as Hen

Taylor James
as Stag

Helen Soraya
as Hen

Jack Jefferson
as Stag

Caterina Spano
as Hen

Peter Le Brun
as Stag

Michelle Theunissen
as Hen

Sebastien Torkia
as Stag

Kitty Whitelaw
as Hen

Dylan Turner
as Stag

Nikki Davis-Jones
as Hen

Ed White
as Stag

Michelle Trimboli
as Hen

Sean Williams
as Stag

Kirsty Mather
as Hen

Lee Honey-Jones
as Stag

Rebecca Lee
as Hen

Gareth Chart
as Stag

Clare Louise Connolly
as Hen

Sonny Lee Hymas
as Stag

Kirsty Swain
as Hen

Tim Stanley
as Stag

Lisa Reynolds
as Hen

Sara West
as Hen

Claire Fishenden
as Hen

Adrian Allan
as Businessman (uncredited)

Maeve Yanes
as Boat Driver (uncredited)

Anthony Backman
as Dancer (uncredited)

Mackenzie Criswell
as Dancer (uncredited)

Lori Haley Fox
as Dancer (uncredited)

Sommer Garcia
as Dancer (uncredited)

Will Jeffs
as Singer (uncredited)

Kirk McGee
as Dancer (uncredited)

Meghan McLeod
as Dancer (uncredited)

Nikki Rapp
as Dancer (uncredited)