Writer:	Alex Kurtzman, Roberto Orci
Director:	Mikael Salomon
Star:	Victor Garber (Jonathan 'Jack' Donahue Bristow),  Michael Vartan (Michael C. Vaughn),  Ron Rifkin (Arvin Sloane),  Carl Lumbly (Marcus R. Dixon),  Merrin Dungey (Francine 'Francie' Calfo),  Jennifer Garner (Sydney Anne Bristow),  Bradley Cooper (William 'Will' D. Tippin),  Kevin Weisman (Marshall J. Flinkman)
Recurring Role:	Gina Torres (Anna Espinosa),  Evan Parke (Charlie),  Greg Grunberg (Agent Eric Weiss)
Guest Star:	Anthony Vatsula (Doorman),  Tony Sears (SD-6 Agent),  Alfonso Paz (Lead Security Officer),  Russell Alexander Orozco (M.C.),  Randy Mulkey (Navy Seal),  Luis Medina (Eduardo Benegas),  Duane Journey (Sniper Team Leader),  Carole Gutierrez (Laura Stenson),  Mark Rolston (Seth Lambert),  Elaine Kagan (June Litvack),  Keone Young (Professor Choy),  Aharon Ipalé (Ineni Hassan),  Cass Asher (German SD-6 Agent Schwartz)

The set in which the car is displayed in Madrid is the same set that was used in episode 2.06 That Old Black Magic of Charmed as a museum. (edit) Music from episode includes:
"The Beginner" by Miranda Lee Richards
"La Cienega Just Smiled" by Ryan Adams
"Rings A Bell" by Bill Bonk
"Go Get It" by Spookie Daly Pride (edit) The episode's title, "Parity", is a computer reference. A parity bit is an bit at the end of a byte used for error detection. It's association to this episode seems to be the relationship between Sydney and Lambert, and his supervising of her progress. (edit)

Sydney: Are you insane? Calling me in here for a social event? SD-6 has a division whose sole responsibility it is to track their agents and report back suspect activity. "Your girl" is risking her life, and you yours, every time we lay eyes on each other. So, do me a favor: don't be so friendly.
Lambert: I-I just love your spirit.
Sydney: That's heartening. Are we done here? (edit) Sydney: See you when I get back.
Vaughn: No, actually, you won't. Uh, I'm being replaced by a senior officer. It seems I wasn't experienced enough to be your handler. (edit) Sydney: I don't want it to be like that anymore, I'm just sick of it. I mean, I always had this feeling that maybe someday, I don't know, my dad and I would connect. That things could start to get better.
Francie: Well, you know my opinion of your dad.
Sydney: I know.
Francie: But listen. If you can find it in your heart to forgive him for being the kind of guy he's been all your life, which I would find impossible and could never do, then you should make a real effort. (edit) Sydney: (reading one of Rambaldi's schematics) "Rudimentary Schematic for Transportable Vocal Communicator".
Sloane: The guy was drawing up plans for a cellphone around the time of the Ottoman Empire.
Dixon: Come on!
Sloane: Ridiculous, right? You know me, I'm not a new age kind of guy, I don't believe in the power of the pyramids, I'm not a big granola fan. (edit) Vaughn: What can you tell me about this woman, Anna Espinosa?
Sydney: She was born in Cuba, raised in Russia. One of the last of the Cold War babies. Go-to Officer at K-Directorate for wet work and active measures. About a year ago, I had a meeting with an informant in Yugoslavia, low level, just a guy with intel who needed the money. Anna recorded the entire conversation with a parabolic mike from the building next door.
Vaughn: How do you know?
Sydney: Because as I was shaking his hand to leave, she blew out the back of his skull with a sniper rifle, even though she got what she came for. Her way of telling me I was way out of my league. (edit)

Goof: When Sydney is chasing Anna through the basement after Anna stole the briefcase from the vault, Sydney removes her high heels on a stairway, to run faster. A couple of edits later, we see Sydney round a corner, briefly we can see her wearing RUNNING shoes...a moment later we see her barefoot again. And she is clearly barefoot again when she begins her little brawl with Anna! (edit) Number 47: (hidden) When Sloane is talking about the device that Sydney stole in "Truth Be Told," there a serial number on screen: 6867-8795-245-487 8739. (edit) Number 47: The model of the car is Quantum 6 27 -110. (edit) The car which is unveiled in Madrid is a Vauxhall VX200 (Vauxhall are also know as Opel). (edit) At the party Sydney attends, a butler at the door compliments her necklace, he says: "Que collar tan encantador", in English it means: "What a lovely necklace". (edit)

Marshall: ... you'll probably want to dress nice, you know, dress to thrill.
A play on Dressed to Kill, the title of four movies, one of which is an adaptation of a Arthur Conan Doyle's story and the more recent one was directed by Brian De Palma in 1980. (edit)