Dave Brockie ("Oderus") actually sings the song that Adam is lip syncing to in the cold open.
Voice actor Kevin Barbare sent Adam Green several different readings and characters to choose from for the "Celebrity TV Reporter" in addition to Michael Caine. Voices included Don Pardo, Christopher Walken, and Tom Brokov.
In the first draft of Adam Green's script for "Blobby" it was only "Random Camera Guy" (Will Barratt) that ran out of Lance's office half naked, however Dee Snider suggested having other characters also walk out in order to keep Lance Rockett's sexual preference ambiguous. It was Dee's idea to have "Sarah the Waitress", Lance's other illegitimate son ("Vikki McLixx" who was seen briefly at the end of episode 2.5), and a goat walk out.
Adam Green actually lip synced and performed the entire GWAR song "The Road Behind" for one of the takes of the episode's cold open. Only a small portion was used in the final cut, though the full performance is rumored to be a special feature on the upcoming Season 2 DVD and BLU-RAY release.
Actor Andy Nyman who voices "Axl The Cat" is a British actor whom Adam Green and Joe Lynch became close friends with by attending the UK Fright Fest film festival year after year. He recorded his entire role in London, save for one line that was done on the mix stage in Los Angeles.