Season One Aliases

1x02-Wendigo

UC Boulder Students - When they first meet Ranger Wilkinson, Dean states that they are environmental study majors from UC Boulder. (In real life, the University at Boulder is known as CU-Boulder, not UC.)

1x03 - Dead in the Water

US Wildlife Service : Agent Ford and Agent Hamill - Dean introduces them to Will Carlton as Agent's Ford and Hamill from the US Wildlife Service. The guy's obviously a fan of the original Star Wars trilogy, as the names Ford and Hamill are the surnames of the two lead actors - Harrison Ford (Han Solo) and Mark Hamill (Luke Skywalker).

1x04 - Phantom Traveler

1x06 -Skin

Police Detective - Sam tells his friend Rebecca that Dean is a policeman and might be able to help them. Dean elaborates and states that he is, in fact, a detective in Bisbee, Arizona.

1x07 -Hook Man

1x08 - Bugs

Dustin Burwash's Nephews - When the two boys meet Travis Weaver at Oklahoma Gas & Power, Dean asks him if he worked with "Uncle Dusty."
Prospective Home Buyers - Trying to get some more information on the events at Oasis Plains, Dean and Sam go to an open house, and indicate they're looking to buy. Both Larry Pike and Linda Bloom mistake them for a gay couple until they explain that they want the house for their father.
Anthropology Students - The Winchesters talk to the professor about the bones they found, and tell him that they are in his Anthropology 101 class.

1x09 - Home

Police Detectives - Sam and Dean visit a mechanic that worked with their dad until he disappeared twenty years prior. After the mechanic wonders why the cops would care after all that time, Dean tells him they're working on some cold cases, including the John Winchester disappearance.

1x10 -Asylum

Chicago Tribune Reporter : Nigel Tufnell - While at The Old Terminal Pub, Dean introduces himself to officer Daniel Gunderson as Nigel Tufnell from the Chicago Tribunenewspaper. Nigel Tufnell is a character from the 1984 mockumentary This is Spinal Tap. He's the band Spinal Tap's lead guitarist, and was played by Christopher Guest.

1x11 -Scarecrow

Friend of Vince and Holly Parker : John Bonham - When he arrives in front of Scotty's Cafe, Dean introduces himself to Scotty as John Bonham, a friend of the missing Parkers. John Bonham was most famously the drummer forLed Zeppelin, a fact that Scotty recognizes.

1x12 - Faith

Mr. Berkowitz - This is the name on the credit card Sam gives the nurse at the hospital to pay for Dean's medical bills. (He's electrocuted at the scene before.) There is a famous person with the same surname: David Berkowitz, the serial killer who went by the name Son of Sam.

1x13 -Route 666

Insurance Investigators - To talk to Ron Stubbins about Jimmy Anderson, Dean and Sam both claim to be with the dead man's insurance company: All National Mutual.

1x14 -Nightmare

Detective McCreedy - After Sam has his first vision (Jim Miller's murder), posing as a policemen, he phones in a "480," giving his name as McCreedy and his badge number as 15a. The badge itself shows McCreedy to be with the Michigan State police.
Father Simmons and Father Frehley - In full disguise as priests, the WInchesters get into the Miller house, and use the opportunity to take a sneaky look around. Dean introduces himself and Sam to Roger Miller as Father's Simmons and Frehley. Gene Simmons and Ace Frehley are two members of the rock band KISS who had a famous falling out with each other.

1x15 -The Benders

Minnesota State Police: Officer Gregory Washington - When Sam and Dean talk to Evan, they're dressed as though they are state sheriffs. When Officer Kathleen looks up Dean's ID, she confronts him about how that ID was stolen from the real Officer Washington, a black man.

Sam's Cousin - To get help from Officer Kathleen in his hunt for Sam, Dean pretends to be Sam's cousin. (Due to the events in the episode Skin, Dean Winchester is believed to have been a murderer who was shot to death.)

1x16 -Shadow

Technicians : PF Alarm Service- Sam and Dean get into Meredith's apartment by pretending to be technicians from Meredith's alarm company trying to find out what went wrong with her system. They wear company overalls (which Dean gripes they paid for with his "hard earned" money) with their own first names stitched into the labels.

1x17 - Hell House

Reporters : Dallas Morning News - When Dean and Sam first go in to talk to Craig, they introduce themselves as reporters. They claim to be from the Dallas Morning News wanting to write about the girl found dead in the Hell House that disappeared.

Hollywood Producer- Sam phoned Harry and Ed pretending to be a famous Hollywood producer in order to get them to leave town.

1x18 - Something Wicked

Dr. Jerry Kaplan - Sam claims to be Dr. Jerry Kaplan from the CDC, despite the fact that his ID lists him as a Bikini Inspector. There is a real Jerry Kaplan who is a entrepreneur in the computer industry.
Kris Warren - This is the name on the credit card that Dean uses for the motel room. The real Kris Warren works for Wonderland Productions who are involved in the show.

1x19 - Provenance

TV Scouts - When Dean is trying to pick up a couple of women at a bar, he tells them that he and Sam are LA TV Scouts looking for people with special skills.
Sam and Dean Connors - Claiming to be Art Dealers with Connors Ltd, Sam and Dean get into the auction house. Luckily, Sam studied Art History which makes them more believable.

1x20 -Dead Man's Blood

No aliases used.

1x21 -Salvation

No aliases used.

1x22 -Devil's Trap

No aliases used.