Mary Poppins is the titular protagonist of the movie of the same name.
- She is played by Julie Andrews.
- Barney will join Mary in Barney and Mary Poppins.
- Mary will become a future member of the McDonaldLand Adventure Crew.
- Mary will meet Winnie the Pooh, Danny and friends in Winnie the Pooh Meets Mary Poppins.
- Mary will meet Yogi Bear and friends in Yogi Bear Meets Mary Poppins.
- Mary will join the team in Winnie the Pooh Meets Penelope.