The tattoo around the left eye of "Todd the Wraith" is a tribute to Ace Frehley's "Spaceman" make-up. Christopher Heyerdahl, who plays Todd, is a huge fan of KISS and Ace Frehley in particular, and requested the tattoo as a tribute.
"That's my name. Pleased to meet you." => The Rolling Stones reference ('Sympathy for the Devil')