When Dick/Robin and Kori/Starfire are interrogating the hunter who saw Rachael/Raven he says the only place around where he saw her was "the old Caulder place on Danny Street." Danny The Street is a DC comics character, a sentient street that serves as refuge for social misfits like the Doom Patrol.
This episode appears to be a backdoor pilot to next years Doom Patrol (2019)
Gar Logan's leather jacket is a homage to his 80s comic book costume
This episode marks the first ever live-action appearance of the Doom Patrol.
When Dick assaults the hunter in his home the television in the background is playing an episode of The Dukes of Hazzard (1979)