Osterhaus comes directly from the Broadway production where she played Winifred Banks for nearly two years. The critically acclaimed musical is currently playing the Princess of Wales Theatre through Jan. 8, 2012.

Osterhaus made her Broadway debut as the understudy for Sophie in Mamma Mia! Her regional work includes Thoroughly Modern Millie (Millie Dillmount), Children of Eden (Yonah), Joseph and the Amazing Technicolor Dreamcoat (Narrator) and Gypsy (Louise).

The Mary Poppins tour currently stars Nicolas Dromard as Bert, Laird Mackintosh as George Banks, Rebecca Thornhill as Winifred Banks, Valerie Boyle as Mrs. Brill, Dennis Moench as Robertson Ay, Jayne Lewis as Miss Andrew, Janet MacEwenas The Bird Woman and Ed Dixon as Admiral Boom.

Richard Eyre directs Mary Poppins, which features choreography and co-direction by Matthew Bourne and boasts original songs from the film — with music and lyrics by Richard M. Sherman and Robert B. Sherman — as well as new songs and additional music and lyrics by George Stiles and Anthony Drewe. Julian Fellowes wrote the book.

The musical also features set and costume design by Bob Crowley, co-choreography by Stephen Mear, lighting design by Howard Harrison, sound design Steve Canyon Kennedy, orchestrations by William David Brohn, musical direction by James Dodgson, musical supervision by David Caddick, tour director Anthony Lyn and associate choreographer Geoffrey Garrett. Tickets are available at the Princess of Wales Box Office, online at mirvish.com. To charge tickets, call Mirvish at (416) 872-1212 or (800) 461-3333. For more information visit www.marypoppins.com.