* Jung Pak, disappeared 30 September 1956. He has gills on the upper portion of his back which likely will allow him to breathe underwater.
* Tyler Downing, disappeared 9 January 1972. He has the ability to control electricity.
* Philippa Bynes, disappeared 11 May 1994. She has the ability to generate a glowing light in the palm of her hands.
* Daniel Armand, disappeared 20 July 1990. He has the ability to induce mental illness.
* Dante Ferelli, disappeared 24 December 1982.
(NTAC employees are looking at a large clock)
Agent Garrity: Anyone else feel like they're staring at a doomsday clock?
Diana: The only animals I saw at his place were a couple of cockroaches.
Dr. Burkhoff: (to Diana) Sorry about the clutter. I fired the maid last week. She was always cleaning.
Wesley Hauser: How'd you like my apartment?
Tom: Well, to be honest it felt a little empty without you being there.
Isabelle: I feel lost.
Shawn: Now, you're starting to sound like a real 4400.
Marco: (to Diana and Nina): You can buy a free Dennis Ryland t shirt within a block from here.
Richard: Who in the hell is this? Where's Isabelle?
Isabelle: Dad, I am your daughter.
Diana: I hate reruns.
Megalyn Echikunwoke (Isabelle Tyler) and Karina Lombard (Alana Mareva) join the cast as series regulars.
United Kingdom: 09 August 2006 on Sky One
Marco: Don't forget the Beastmaster. What? That dog got pissed pretty quick.
The Beastmaster is a science fiction novel written by Andre Norton, where a young man has the power to control and speak to animals. The novel has spun two films and a Canadian television based series which aired from 1999 to 2002.