You should watch:

Thine Own Self

This was episode number 16 of season 7.

The following characters appeared in this episode:

(as Andy Kossin)Apprentice

(as Michael G Hagerty)Skoran

(as Richard Ortega-Miro)Rainer

(voice) Enterprise Computer

Captain Jean-Luc Picard

Counselor Deanna Troi

Commander Wiliam T Riker

Doctor Beverly Crusher

Gia

Garvin

Lieutenant Worf

Lt Commander Data

Lt Commander Geordi La Forge

Talur