Series Cast
Carla Gugino
Dr. Molly Anne Caffrey
Brian Van Holt
Sean Cavennaugh
Brent Spiner
Dr. Nigel Fenway
Rob Benedict
Lucas Pegg
Peter Dinklage
Arthur Ramsey
Charles S. Dutton
J.T. Baylock
Current Season

Season 1
2005 | 13 Episodes
Season 1 of Threshold premiered on Sep 16 2005
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Facts
Status
Canceled
Status

Type
Scripted
Original Language
English
Keywords
- washington dc, usa
- alien
- alien invasion
- government cover-up
- top secret
- government conspiracy