You should watch:

The Best of Both Worlds: Part 2

This was episode number 1 of season 4.

The following characters appeared in this episode:

(voice) (uncredited) Enterprise Computer
Admiral J P Hanson
Borg
Captain Jean-Luc Picard/Locutus of Borg
Chief Miles O'Brien
Counselor Deanna Troi
Commander Wiliam T Riker
Doctor Beverly Crusher
Ensign Wesley Crusher
Gleason
Guinan
Lieutenant Worf
Lt Cmdr Elizabeth Paula Shelby
Lt Commander Data
Lt Commander Geordi La Forge