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Timescape

This was episode number 25 of season 6.

The following characters appeared in this episode:

(uncredited) Alien #2
(uncredited) Ensign Jae
(voice) (uncredited) Enterprise Computer
Alien #1
Captain Jean-Luc Picard
Counselor Deanna Troi
Commander Wiliam T Riker
Doctor Beverly Crusher
Engineer
Lieutenant Worf
Lt Commander Data
Lt Commander Geordi La Forge
Romulan