Mary Callahan and Alison Ewing Are MAMMA MIA!'s Newest Dynamos; Both Join Cast Tonight!
Benny Andersson and Bjorn Ulvaeus' global smash hit musical MAMMA MIA welcomes new Dynamos Mary Callahan and Alison Ewing to the Broadway cast as Rosie and Tanya, beginning performances this evening, February 2, 2015 at The Broadhurst Theatre 235 West 44 Street.