David Tennant as Wadsworth Scarlett Johansson as Miss Scarlett Kate McKinnon as Mrs. Peacock Tiffany Haddish as Mrs. White Ryan Reynolds as Professor Plum Nick Offerman as Colonel Mustard Dan Levy as Mr. Green
With Alec Baldwin as Mr. Boddy Melissa McCarthy as the Cook Kat Dennings as Yvette Eugene Levy as The Chief
Special Guest Cameos Ariana Grande as the Singing Telegram Girl Colin Jost as the Motorist Kenan Thompson as the Cop