You should watch:

Genesis

This was episode number 19 of season 7.

The following characters appeared in this episode:

(uncredited) Ensign Jae

(uncredited) Ensign Kellogg

(voice) Enterprise Computer

Barclay

Captain Jean-Luc Picard

Counselor Deanna Troi

Commander Wiliam T Riker

Doctor Beverly Crusher

Ensign Dern

Lieutenant Worf

Lt Commander Data

Lt Commander Geordi La Forge

Nurse Alyssa Ogawa