• Billy West (Fry, Dr. Zoidberg, Professor Farnsworth, Nixon)
• Katey Sagal (Leela)
• John DiMaggio (Bender, Norm)
• Tress MacNeille (Nurse Ratchet, CIA cafeteria announcer, Surveillance camera, bank teller)

• Phil Lamarr (Hermes Conrad, Unit 2013)
• David Herman (Roberto)
• Lauren Tom (Amy Wong)

• Maurice LaMarche (Chicken Lawyer)

• the courthouse seal has an eagle holding mallets? {JK}
• By 3000, the U.S. Constitution has 67 Amendments? {JK}
• the cover of Hermes' book with the mandatory speech reads "Minimum Obligations Manual"? {JL}
• the statue of the fortuna goddess in front of the court is holding two pizzas in her hands instead of a libra and a sword? {JL}
• the judge's cell-phone plays Mozart's 'Eine kleine Nachtmusik'? {JL}
• the birds flying in a circle over the "HAL Institute for criminally insane robots"? {JL}
• Bender and Roberto had to break through five walls in order to escape? {JL}
• The calculator has a "carry the one" key? {MW}
• Hermes has been lazy? There is a sheet of paper in the "in" folder, but none in the "out" one. {MW}
• Thats it is really freaky when Fry is asleep talking about peanut butter? {d}
• Fry's retirement fond is stuck in his socks? {T}
• That Richard Nixon is on the $1000 bill {LL}
• That Fry steps on a woman, lying on the floor in the bank during the robbery, when he runs to open the door? {LL}
• That the judge ruled that being poor is a mental illness? {LL}
• That Bender has a live bird inside flying around? {LL}
• That Hermes' calculator was an anniversary gift from Barbara, his wife? {LL}
• That Fry calls Leela "bossy-me-creature"? {LL}
• That Bender has the heart of a human? {LL}

• 2001: A Space Odyssey (movie)
  • HAL INSTITUTE is a reference to HAL computer than went insane in the movie {M}
• 3 in one brand oil
  • Pi-in-1 oil {w}
• 7-11 (convinience store chain)
  • Fry and Bender sit infront of one. {M}
• Alice In Wonderland (book)
  • Mad Hatter Bot {JK}
• Insane in the Brain (Song by Cypress Hill)
  • Episode Title is a reference to the lycrics of the song, specifically "Insane in the membrane" {JL}
• Lucille Ball Urban Legend
  • Robot with teeth that pick up CIA transmittions {JK}
• One Flew Over Cuckoo's Nest (movie)
  • Nurse Ratchet is a reference to Nurse Ratched from the movie. Her "haistyle" is also modeled after the movie version. {M}
  • several Robot Asylum scenes are a reference to that movie {M}
• Tenderv Vittles (cat food)
  • Zoidberg refers to the name of that cat food {AH}
• The Star Diaries (novel, Stanislaw Lem 1971)
  • Fry's stay in the robot asylum reminds of the chapter 'The Sanitorium of Dr. Vliperdius'. {JL}
  • "Perceptron" mentioned "Professor A. Donda" {M}

• 1ACV06 - A Fishful of Dollars
  • Fry has to deal with his old bank account. {M}
• 1ACV13 - Fry & the Slurm Factory
  • Bender's mechanical insides {JL}
• 2ACV02 - Brannigan Begin Again
  • Hyperchicken Lawyer appears {M}
• 2ACV07 - Put your head on my shoulder
  • Victor and Malfunctioning Eddie appear {M}
• 3ACV04 - The Luck of the Fryrish
  • Hairbot appears {M}
• 3ACV05 - The Bird-bot of Ice-catraz
  • Hyperchicken Lawyer appears {M}

Sign on Big Apple Bank:
 
  COUNTERFEIT MONEY?
    ASK ABOUT OUR
   "PHONEY BALONEY"
       ACCOUNT

Outside Robot Insane Asylum:
 
       HAL
    INSTITUTE
  FOR CRIMINALLY
     INSANE
     ROBOTS

Plaque on Dr. Perceptron office:
 
   Dr. Perceptron
 
      DOCTOR OF
      FREUDIAN
   CIRCUT ANALYSIS

Note on the wall in Asylum:
 
   You Don't 
    Have to
   Be Crazy to
   Mutter to
   Yourself
     Here
  But it Helps

In the visitor room:
 
        WELCOME VISITORS
  GIBBERISH TRANSLATORS AVAILABLE

mandatory speech book:
 
 MINIMUM OBLIGATIONS MANUAL

Fry is stamped:
 
 DEFECTIVE ELECTRONICS

• After offering the others the sandwiches, Fry's pants are suddenly zipped up. {JL}
• Why would a robot write something on paper, even with a pen? (Perceptron) There should be better ways for these few kilobytes by now. {JL}
• Leela seems to unscrew the nut in the wrong direction. {JL}
• Bender knows some french words, even though french is a dead and forgotten language now {MJ}
• Fry seems to be able to grow a beard. He looks unshaved at the visit, while in "I, Roommate" he doesn't even though Bender's appartment doesn't have a bathroom. Also: How did his growing beard disapear later? The asylum doubtly has a bathroom, and as he think he's a robot Fry wouldn't want to shave either? {MF}