Julia Garber (Ensemble Mamma Mia!): Julia Garber is thrilled to join the cast of Mamma Mia! Credits include: Mamma Mia! (Ensemble) and Cinderella (Step-Sister) at Beef and Boards Dinner Theatre, Charlie Brown Christmas Spectacular with RWS Entertainment at King’s Island Winterfest, and Bebe and Sheila in A Chorus Line. BA Theatre from Muhlenberg College. www.juliagarber.com.