If you mean the characters then they are
Mrs White, Colonel Mustard, Miss Scarlet, Mrs Peacock, Professor Plum, Reverend Green
There were loads of sites for cluedo when i did a google search- Seems there are a lot of people with time on there hands!hope that helps : )
The film was called "Clue", which the game is called in the US. Superbly funny in a very cheesy way. Jane Wiedlin was in it as a singing telegram who gets blown away in one of the best laughs in the movie.
If i remember correctly, they had multiple endings so that every character could have done it.