What are the names of the people in 'Mamma Mia'?

Here is the main cast of the film version of Mamma Mia!

• Meryl Streep as Donna Sheridan, Sophie's mother, owner of the hotel Villa Donna, and wife of Sam at the end. She is also Rosie and Tanya's best friend.
• Amanda Seyfried as Sophie Sheridan, Donna's daughter and Sky's fiancée.
• Pierce Brosnan as Sam Carmichael, Sophie's possible father, husband to Donna, and an Irish-American architect.
• Colin Firth as Harry Bright, Sophie's possible father and an English banker.
• Stellan SkarsgÃ¥rd as Bill Anderson, Sophie's possible father, a Swedish sailor and travel writer.
• Dominic Cooper as Sky, Sophie's fiancé, a budding website designer.
• Julie Walters as Rosie Mulligan, one of Donna's former bandmates in Donna and the Dynamos; an unmarried fun-loving author.
• Christine Baranski as Tanya Wilkinson(?), Donna's other former bandmate; a rich three-time divorcee.
• Philip Michael as Pepper, Sky's best man who likes Tanya. He works as a bartender at the hotel.
• Ashley Lilley as Ali, close friend of Sophie and her bridesmaid.
• Rachel McDowall as Lisa,Another close friend of Sophie and her bridesmaid.