Trivia: The show was filmed in an actual prison (now unused) in Joliet. The death row cell used for Lincoln Burrows is the actual death row cell that held serial killer John Wayne Gacy.
Trivia: In the opening credits there is a shot of a girl standing alone on the corner of a street. This was taken from the Buffy episode "Anne", when Buffy was staying in Los Angeles.
A Long Walk To Pittsburgh (2) - S4-E17
Trivia: Topanga is talking to Cory and she says, "My Aunt Prudence wouldn't even know who Romeo and Juliet are!" When her Aunt Prudence knocks on the door, she is played by actress Olivia Hussey, who played Juliet, in the 1968 film Romeo and Juliet, also starring Leonard Whiting as Romeo.
Trivia: Castle's Halloween costume is of Malcolm Reynolds, played by Nathan Fillion in the short-lived TV show "Firefly." Alexis asks him: "Didn't you wear that like five years ago?" Serenity, the film based on Firefly, was released 5 years before this episode aired.
Trivia: They keep guessing the next game, however clues are hiding in plain sight. The illustrations on the dormitory walls depict all the games, from "Red Light, Green Light" to the final match of Squid Game.
Trivia: Nathan Fillion, Gina Torres, Adam Baldwin, and Alan Tudyk all later played villains on Joss Whedon's other Mutant Enemy productions: Fillion appeared as Caleb in the final five episodes of "Buffy the Vampire Slayer," while Torres played Jasmine in season four of "Angel" and Baldwin played Marcus Hamilton in season five. Tudyk played Alpha in "Dollhouse".
Trivia: James Eckhouse plays Jim Walsh, father of Brandon Walsh (Jason Priestley). In real life, Eckhouse is only 14 years older than Priestley.
Trivia: The man Reacher passes in the diner at the end of the episode who says "excuse me" is the author of the Jack Reacher novels, Lee Child.
Abra Cadaver - S3-E5
Trivia: This episode featured a guest appearance by Tom Noonan. Noonan and series star William Petersen played villain and hero, respectively, in the film "Manhunter."
Trivia: Lou Diamond Phillips made two appearances on the show, as Mark DeSalvo, the security chief where Victor Drazen is being held. Philips and star Kiefer Sutherland are known for having worked together in Young Guns and Young Guns 2.
Trivia: In some episodes, Rory speaks Spanish (e.g when she is talking to her grandmother's maid). She speaks very poorly, typical "school-Spanish". This is just acting; Spanish is actually Alexis Bledel's first language. Her mother is from Mexico and her father is from Argentina.
Trivia: Whenever the mobsters in the Sopranos pay they almost always take a wad of cash out of their pocket and pull off the top 3-4 bills and hand it over. If Tony is paying for a pizza he pulls off 3-4 bills. If he's bribing someone he pulls off 3-4 bills. No matter what the amount is for that particular situation, it's always covered with the top 3-4 bills of the cash wad.
Trivia: Jason Donavon's father appeared in the series. He played Doug Willis.
Trivia: In one of the first episodes of the second season, Brooke is talking to Peyton about Lucas, and she says "love triangles are so last season". In the first season, Brooke, Peyton, and Lucas were in a love triangle.
Crossroads - S1-E5
Trivia: In the scene where the Red Devils toast the 101st Airborne, when the camera shows the assembled soldiers you'll see Tom Hanks as one of the Red Devils in a beret at the back left (5 or 6 men in) with his right hand on his hip. His head moves forwards to become obscured behind another soldier. (00:30:30)