The Untold Story of Mary Poppins: A Special Edition of 20/20

Julie Andrews

as Self

Dick Van Dyke

as Self

Chris Connelly

as Self

Pete Docter

as Self

Tom Hanks

as Self

Emma Thompson

as Self

Emily Blunt

as Self

Lin-Manuel Miranda

as Self

Josh Gad

as Self

Karen Dotrice

as Self

John Stamos

as Self

Emily Mortimer

as Self

Walt Disney

as Self (Archival footage)

Phil Rosenthal

as Self

Ashley Brown

as Self