Joe Stevenson's character "Joe Daddy" is a coach in multiple episodes, and is also the fight coordinator for the series, and he is a real UFC fighter and coach in real life.
Nick Jonas put on 15 lbs of pure muscle in order to even be considered for the role of Nate.
While being interviewed by Matt Weiss and Theo Vonn on the podcast "Allegedly," in August 2016, Jonathan Tucker said that he has seen Nick Jonas naked and described Jonas' nude body as being "carved from Carrera marble" and likened it to the "aesthetic of Ancient Greece."
Matt Lauria and Jonathan Tucker were both cast members of the NBC drama Parenthood (2010). They were both love interests of Mae Whitman's character (Amber).