The character Barker is referred to both in the episode title and by Casey as "beefcake" (American slang for a physically attractive man). The actor playing Barker is named Jonathan Cake.
Katrina Law [Alexis] and Ryan McPartlin [Devon 'Captain Awesome' Woodcomb] appeared in the episode, Law & Disorder, of the series CSI: Miami.
Katrina Law (Alexis) and Zachary Levi (Chuck) both appear in the DC universe. Katrina Law as Nyssa al Ghul on CW's Arrow and Zachary Levi as Shazam in Shazam!