Cliff Curtis really takes doing stunt work seriously. Stunt Coordinator Mark Norby says Cliff delivered one of the best head butts he's ever seen.
This episode was actually shot on two different tuna boats. A dry-docked boat was used for exterior shots, while the interiors were shot on its sister boat out on the water.
Mercedes Mason could not resist tasting the fake blood while filming this episode. She immediately regretted her decision, describing it as "bitter, disgusting and sticky."
Alycia Debnam-Carey says that Kim Dickens has been told about what dark things have gone on in Madison's character's past but no one else knows.