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Appearances
Threshold
Guest cast, played by Mark Berry
- Episode 1x01: Trees Made of Glass, Part 1 (Sep 16, 2005)
- Episode 1x02: Trees Made of Glass , Part 2 (Sep 16, 2005)
- Episode 1x04: The Burning (Sep 30, 2005)
- Episode 1x08: Revelations (Nov 4, 2005)