You should watch:

Suspicions

This was episode number 22 of season 6.

The following characters appeared in this episode:

(as Peter Slutsker)Dr Reyga

(uncredited) Ensign Jae

(voice) Enterprise Computer

Captain Jean-Luc Picard

Counselor Deanna Troi

Commander Wiliam T Riker

Doctor Beverly Crusher

Dr Christopher

Dr Jo'Brill

Dr T'Pan

Guinan

Kurak

Lieutenant Worf

Lt Commander Data

Lt Commander Geordi La Forge

Nurse Alyssa Ogawa