Information on the cameo
Cerberus, in Greek and Roman mythology, was a three-headed dog, or "hellhound", that guarded the entrance of the Underworld, allowing the dead to enter while letting none out. Apart from his three heads, he also had a serpent's tail, a mane of snakes, and the claws of a lion. Popular works suggest that the three heads each represented something, varying from past, present, and future to birth, life, and death.
Appearance in the rap battle
Cerberus appeared behind Zeus in the Underworld, where he could be seen barking after Thor rapped the last line in his final verse: "When you get to River Styx, tell your three-headed bitch I say hi."
- The Lego figure used for Cerberus was actually originally designed for the three-headed dog Fluffy in a Harry Potter Lego set.