Trivia: Matthew Perry's wit is so legendary that the scriptwriters have often incorporated his gags into the show.
Trivia: Doug Ross frequently hung his head low, appearing ashamed or thoughtful or privately amused, depending on the scene. This wasn't just an element of the character: George Clooney had taken to writing his lines on papers, sheets, and other props.
Trivia: Walter Koenig's recurring Psi Corps character, Bester, was named in honor of science fiction writer Alfred Bester, who coined the term "psi cop" in one of his many novels about psychic manipulation.
Sins of the Fathers Chapter 9: Tombstone - S3-E9
Trivia: When Spider-Man saves Tombstone from falling into a bubbling vat he jokes about him coming out with "green hair." Clearly that's a joke referencing DC comics' Joker.
Behold the Negative Zone - S1-E12
Trivia: When Blastaar comes through the Negative Zone into the Earth dimension, Thing remarks that Blastaar makes him look like Brian Austin Green. Brian Austin Green was the voice of Human Torch for the first season of this show. (00:11:18)
Coach Fussell's Lament - S2-E5
Trivia: The weird truck drivers who pick up the hitchhiking heroes are the anthropomorphized trees from the episode 'Tick Vs. El Seed.'.