In "Galactica"'s hangar, Chief Galen Tyrol is found after sleepwalking, restlessly asleep on the deck by Specialist Cally. He snaps and violently assaults her after she wakes him. He later seeks religious counseling from a priest named Brother Cavil. Tyrol explains his dreams of jumping off a hangar bay catwalk to his death. Cavil believes it is Tyrol's subconscious desire to kill himself manifested from a fear that he too could be a Cylon "sleeper agent" like Boomer. When Tyrol asks how Brother Cavil can be so certain he is actually human, Cavil sarcastically reassures him that he is not a Cylon "because I'm a Cylon and I've never seen you at any of the meetings" and that Tyrol should return to his duties without worry.