Back With a Vengeance - S2-E13
Trivia: About all of the aliens found in attendance of Kevin's mega cruiser strangely resemble those individuals previously seen (on the selfsame ship) in episode 2-5, "Grudge Match", whereas they should have escaped the cruiser near the end of that episode.
Trees Made of Glass (1) - S1-E1
Trivia: In "Trees Made of Glass, Part 1", Gunneson (William Mapother) is shot in the chest four times by Caffrey. William Mapother previously played Ethan Rom on Lost, who was killed by four shots to the chest.