You should watch:

Up the Long Ladder

This was episode number 18 of season 2.

The following characters appeared in this episode:

(as Jon de Vries)Prime Minister Granger

(credit only)Wesley Crusher

(voice) (uncredited) Enterprise Computer

Brenna O'Dell

Captain Jean-Luc Picard

Chief Miles O'Brien

Counselor Deanna Troi

Commander Wiliam T Riker

Danilo O'Dell

Doctor Pulaski

Lieutenant Geordi La Forge

Lieutenant Worf

Lt Commander Data