Amanda Seyfried

Sophie

Lily James

Young Donna

Pierce Brosnan

Sam

Colin Firth

Harry

Stellan Skarsgård

Bill / Kurt

Christine Baranski

Tanya

Julie Walters

Rosie

Alexa Davies

Young Rosie

Jessica Keenan Wynn

Young Tanya

Dominic Cooper

Sky

Cher

Ruby Sheridan

Andy Garcia

Fernando Cienfuegos