Amanda Seyfried (Sophie Sheridan), Meryl Streep (Donna Sheridan), Pierce Brosnan (Sam Carmichael), Colin Firth (Harry Bright), Stellan Skarsgård (Bill Anderson), Christine Baranski (Tanya Chesham-Leigh), Julie Walters (Rosie Mulligan) more..., Dominic Cooper (Sky Rymand), Niall Buggy (Father Alex), Ashley Lilley (Ali), Rachel McDowall (Lisa), Chris Jarvis (Eddie), Philip Michael (Pepper), Juan Pablo Di Pace (Petros), Enzo Squillino Jr. (Gregoris), Ricardo Montez (Stavros), Benny Andersson (Piano Player on Boat (uncredited)), Spencer Kayden (Agnes - Dancer (uncredited)), Björn Ulvaeus (Greek God (uncredited)), Rita Wilson (Greek Goddess (uncredited)), Nancy Baldwin (Sam's PA), Heather Emmanuel (Harry's Housekeeper), Colin Davis (Harry's Driver), Mia Soteriou (Arina), George Georgiou (Panos), Hemi Yeroham (Dimitri), Maria Lopiano (Ione), Norma Atallah (Irini), Myra McFadyen (Elena), Leonie Hill (Ariana), Jane Foufas (Elpida), Karl Bowe (Stag), Celestina Banjo (Hen), Emrhys Cooper (Stag), Maria Despina (Hen), Gareth Davis (Stag), Charlotte Habib (Hen), Gareth Derrick (Stag), Jennifer Leung (Hen), Kage Douglas (Stag) and others.

Catherine Johnson (Screenplay), Gary Goetzman (Producer), Judy Craymer (Producer), Tom Hanks (Executive Producer), Benny Andersson (Executive Producer), Mark Huffam (Executive Producer), Björn Ulvaeus (Executive Producer) more..., Rita Wilson (Executive Producer), Haris Zambarloukos (Director of Photography), Lesley Walker (Editor), Maria Djurkovic (Production Design), Anthony Van Laast (Choreographer), Becky Bentham (Music Supervisor), Priscilla John (Casting), Ellen Lewis (Casting), Kathy Sykes (Unit Production Manager), Christopher Newman (First Assistant Director), Richard Goodwin (Second Assistant Director), Simon Hayes (Production Sound Mixer), Nick Palmer (Supervising Art Director), Barbara Herman-Skelding (Set Decoration), Philip Sindall (Camera Operator), Tina Earnshaw (Makeup Designer), Zoe Tahir (Key Hair Stylist), Sally Jones (Script Supervisor), John Higgins (Gaffer), Adrian McCarthy (Key Grip), John Bohan (Construction Manager), Tony Lewis (Supervising Music Editor), Nick Adams (Supervising Sound Editor), Mark Nelmes (VFX Supervisor), Nichola Treherne (Associate Choreographer), Jeanette Haley (Post Production Supervisor), Deryn Stafford (Production Coordinator), Dean Clegg (Art Direction), Rebecca Holmes (Art Direction), Sarah Bicknell (Standby Art Director), Helen Koutas (Graphic Designer), Kate Curtis (Art Department Coordinator), Leonie Heys-Cerchio (Art Department Assistant) and others.