You should watch:

A Matter of Perspective

This was episode number 14 of season 3.

The following characters appeared in this episode:

(as Juli Donald) Tayna

(voice) (uncredited) Enterprise Computer

Captain Jean-Luc Picard

Chief Miles O'Brien

Counselor Deanna Troi

Commander Wiliam T Riker

Doctor Beverly Crusher

Dr Nel Apgar

Inspector Krag

Lieutenant Worf

Lt Commander Data

Lt Commander Geordi La Forge

Manua Apgar

Wesley Crusher