Much of the Dminic Mndawe/Freedom Beast storyline is taken from Grant Morrison's on 'Animal Man', starting with #13. Dmnic received the potion and helmet from his predecessor, Mike Maxwell, "B'wana Beast", who makes a brief appearance here and is mentioned by name.
When Beast Boy is exploring the multiverse to uncover multiple Earths, he hears and sees his animated counterpart from 'Teen Titans Go!'. This Episode also connects the CW's The Flash, Stargirl, Doom Patrol and Swamp Thing along with Shazam
This episodes title is a reference to 'Dude, Where's My Car?' (2000)
At the very start of the episode the zoo keeper makes a reference to Garfield