Elisa's undercover name is Salli, which is an in-joke, since the character is voiced by actress Salli Richardson.
Goliath and Hudson appear briefly at the end of this episode, but neither speaks.
This is the third episode you see Elisa in a different outfit -- a short miniskirt and thigh high boots.
Lexington: Hey, A-Angie, wait up!
Angela: Oh, and another thing: stop calling me Angie!!
Brooklyn: Got it.
Broadway: No problem.
Lexington: 'Angela' it is.
Angela: Can't you do something? I thought you flew a helicopter.
Lexington: Yeah, but, a-ha, first I-I kinda crashed it.
Angela: Besides, I'm not the only female gargoyle on Earth. I have fifteen rookery sisters on Avalon.
Brooklyn: So, uh, when do we get our world tour.