Q returns as Capt. Picard finds himself continually shifting into the past, future, and present, and he must use that to discover a threat to humanity's existence.
Captain Jean-Luc Picard
Patrick Stewart
Commander William Riker
Jonathan Frakes
Lieutenant Commander Geordi La Forge
LeVar Burton
Lieutenant Worf
Michael Dorn
Doctor Beverly Crusher
Gates McFadden
Counselor Deanna Troi
Marina Sirtis
Lieutenant Commander Data
Brent Spiner
Lieutenant Natasha 'Tasha' Yar
Denise Crosby
Q
John de Lancie
Chief Miles O'Brien
Colm Meaney