Miss Scarlet (Lesley Ann Warren) is a character from the board game, Clue. In the film adaptation, she is a socialite who runs an illegal escort service, for which she is being blackmailed by Mr. Boddy. In one of the ends, she killed the cop in the library with a lead pipe.

In Clue, the Singing Telegram Girl (Jane Wiedlin) is a character who visits Mr. Boddy’s party to deliver a message, before being killed by one of the guests. She is later revealed to be a former patient and lover of Professor Plum’s.

In Clue, Mr. Green (Michael McKean) is a State Department employee and guest of Mr. Boddy. He is blackmailed for being gay, a secret which would cost him his job. In one of the endings, he is suspected of killing the singing telegram girl in the hall with the revolver. He ultimately reveals himself as an undercover FBI agent, who actually killed Mr. Boddy in the hall with the revolver.

Yvette (Colleen Camp) is Mr. Boddy’s maid in the film, Clue. She is also Mr. Boddy’s accomplice, a former escort for Miss Scarlet, where she had Colonel Mustard as a client, and one of Miss Scarlet, Mrs. Peacock, or Mrs. White, depending on the ending.

In the film, Clue, Mrs. Peacock (Eileen Brennan) is the high society wife of a Senator. She is a guest of Mr. Boddy’s party, and is being blackmailed for accepting bribes to deliver her husband’s vote. To stay true to the board game, Mrs. Peacock killed the cook in the kitchen with the knife.

Dr. Emmett Lathrop “Doc” Brown, Ph.D., played by Christopher Lloyd, is best friends with Marty McFly in the Back to the Future series. Brilliant but absentminded, he invents a time machine using a DeLorean, a flux capacitor, and plutonium stolen from Libyan terrorists. Great Scott!