You should watch:

A Fistful of Datas

This was episode number 8 of season 6.

The following characters appeared in this episode:

(uncredited)Henchman

(voice) Enterprise Computer

Annie Meyers

Alexander Rozhenko

Bandito

Captain Jean-Luc Picard

Counselor Deanna Troi

Commander Wiliam T Riker

Doctor Beverly Crusher

Eli Hollander

Lieutenant Worf

Lt Commander Data/Frank Hollander/Eli Hollander/Henchman/Bandito/Annie Meyers

Lt Commander Geordi La Forge