Trivia: The names on Olivia's list of the height chart from the classroom at the daycare in Jacksonville: Cameron A, Miranda G, Lloyd B, Tessa E, Timothy O, Olive D, Rich N, Alan D, Annie P, Nick L, Susan L, Hames H, Lisa B, Nancy L, Julie H, Ken T.
Trivia: The Observer walks past Miranda's Jeep, right to left, as she stops at the light and talks to her mother.
Trivia: The glyph code for this episode is ENERGY.
Peter: How come you didn't call Broyles? Olivia: I've got you on speed dial. Peter: Really? I'm number one on Olivia Dunham's speed dial? Olivia: Well, no, but I didn't think that Rachel or Mr. Iyer from the Indian takeout would be much use.
Walter: It was a nude ski run. By time you got to the bottom, your testicles would be in your mouth. Peter: I'm sure Agent Dunham is very thankful for that image.
Walter: Could you get a sample of this pus please, Peter? Peter: I always get the good jobs.
Walter: It seems you've forgot my very first lesson, doctor. When you open your mind to the impossible, sometimes you find the truth.
Olivia: You thinking what I'm thinking? Peter: Well, I'm thinking that cancer isn't contagious. Olivia: Well, it wouldn't be the strangest thing we've seen. But it would be close.
Music: Happy (Brookville), Off Minor (John Coltrane), The Losing End (Neal Casel), Oh Sweet Nothing (Velvet Underground), Travelin' Man (Ricky Nelson)
Diane Kruger, movie actress and Joshua Jackson's real-life girlfriend at the time this episode premiered, has an uncredited role as the first on-screen victim. She starred in Inglourious Basterds, where Brad Pitt played a character with the same name as her character's oncologist here.
International Airdates: Canada: April 8, 2010 on ATV United Kingdom: April 13, 2010 on Sky One Australia: April 14, 2010 on GO! Latin America: April 20, 2010 on Warner Channel Sweden: July 1, 2010 on Kanal 5 Germany: September 13, 2010 on ProSieben Poland: December 31, 2010 on TVN Finland: January 12, 2011 on MTV3 Czech Republic: February 11, 2011 on Nova Cinema
Title: Referencing the classic Parker Brothers mystery board game, Clue, in which players must determine who had killed Mr. Boddy, in what room and with what weapon.
S 4 : Ep 22
Aired 5/11/12
S 4 : Ep 21
Aired 5/4/12
S 4 : Ep 20
Aired 4/27/12
S 4 : Ep 19
Aired 4/20/12
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