You should watch:

Clues

This was episode number 14 of season 4.

The following characters appeared in this episode:

(uncredited)Jones

(voice) (uncredited) Enterprise Computer

Captain Jean-Luc Picard

Chief Miles O'Brien

Counselor Deanna Troi

Commander Wiliam T Riker

Doctor Beverly Crusher

Ensign McKnight

Guinan

Gunman

Lieutenant Worf

Lt Commander Data

Lt Commander Geordi La Forge

Madeline

Nurse Alyssa Ogawa