Trivia: NUMB3RS

  • Actor Allusion: At one point, Alan Eppes appears to have been involved in an act of civil disobedience gone horribly wrong as a younger man. He wasn't, but actor Judd Hirsch played a similar role in Sidney Lumet's Running On Empty.
    • At the end of "Blackout", Alan turns on the television, saying late night is when they play "the classics", and the theme for Taxi starts up.
    • When it is discovered that Larry's been living in the Steam Tunnels, Mildred mentions playing Dungeons and Dragons there. Peter MacNicol portrayed the male lead of the Dragonslayer movie.
  • Cast the Expert: Bill Nye as a scientist.
  • Hey, It's That Guy!: David Krumholtz has been seen as Mr. Universe in Serenity, and Wednesday Addams' geeky boyfriend in Addams Family Values. He also played Michael in 10 Things I Hate About You, and Goldstein in Harold & Kumar Go to White Castle.
    • Which also features MacNicol as the overly-cheery camp counselor.
    • Krumholtz is also Bernard in The Santa Clause.
    • John Cage is Dr. Fleinhart. Fleinhart was also Yavosh in Ghostbusters II.
    • The Fly's dad is the father, and Dr. Joel the big brother of the Eppes family.
    • The Native American from Young Guns is the Cold Sniper.
    • Judd Hirsch is best known for playing Alex Rieger on Taxi.
      • He also played the father and adult version of David Krumholtz's character in the play Conversations With My Father, Krumholtz's big break.
    • Charlie's frienemy is that dude from Orange County, aka Tom Hanks' son.
    • Krumholtz also played guest star D.W. Moffet's brother on Chicago Sons.
    • Spike (complete with accent) holds a woman hostage in an elevator in "Guilt Trip."
  • Hey, It's That Place!: Most of the outside scenes at CalSci was filmed at the Caltech campus (fitting, since CalSci is clearly a fictionalized version of Caltech).