Rook

Rook is the one of the eager Astronaut candidates attempting to qualify for their first lunar mission while undergoing vigorous training. Along the way, he and the other two astronaut candidates question their own sanity and trust in each other.

"Dry"
Rook is shocked to learn that they burned through an entire month's worth of water in just a week, and suggests drinking vegetable oil to sustain themselves, which Skip quickly rejects. When Skip brings out urine recycled water, Rook questions if it's for some sort of fetish before drinking it — and quickly spitting it back out again, saying "that's not water".