Victoria Justice
Awww! The future star of Victorious and Eye Candy made her TV series debut on Gilmore Girls as "Jill #2" when she was just 10 in the 2003 episode where Sookie and Lorelai cater a kids' party.
Chad Michael Murray
The reason Rory and Paris had to be frenemies for so long, Tristin DuGrey came between them early on, but ultimately realized that Rory had feelings for Dean and walked off into the sunset. Not to mention Tristin was about to become Lucas Scott on One Tree Hill.
Sherilyn Fenn
The Twin Peaks star had two roles on Gilmore Girls, Jess' dad's girlfriend, Sasha, and then later...bum-bum-bum...Anna, the mother of Luke's surprise daughter April.
Abigail Spencer
Colin Farrell's ex on True Detective got rolling as Megan, a bridesmaid at Logan's sister's wedding.
Madchen Amick
Rory's dad, Christopher, credits girlfriend Sherry for his newfound stability after he reappears in season 2. Too bad Sherry didn't get the memo, because she ultimately blows town, leaving Chris with their baby daughter, Gigi.
Billy Burke
The Twilight dad played Alex, one of Lorelai's many suitors.
Traci Lords
Known primarily for her adult-film repertoire, the buxom blond played an interior designer hired by Lorelai, but the only skeleton in her closet was that she once worked for Emily.
Seth MacFarlane
Yup, that's the creator of Family Guy playing a random graduate in between the time when Fox canceled his now-iconic sitcom in 2002 and brought it back in 2005.
Sebastian Bach
The Skid Row frontman spent a lot of time in Stars Hollow as the older member of Lane, Zach and Brian's band, Hep Alien.
Paul Anka
Lorelai's dog's crooner namesake finally made a real-life appearance on the Thanksgiving episode in 2006.
Norman Mailer
What would an episode called "Norman Mailer, I'm Pregnant!" have been without an appearance by the legendarily controversial writer-journalist-filmmaker himself?
Nick Offerman
The future Parks and Recreation scene-stealer played Sookie's brother-in-law, Beau Belleville. Political affiliation unknown.
Michael York
The British thesp, known for varied fare such as Cabaret and Austin Powers, was Paris' professor paramour (till his death did they part), Asher Fleming.
Masi Oka
Who knew that this unassuming Harvard philosophy student would turn out to be quite the Hiro?
Mary Lynn Rajskub
Before she clocked into 24 the actress did some busking in Stars Hollow.
Marion Ross
Rory's great-grandma (and Lorelai's namesake, Lorelai "Trix" Gilmore) was one of the all-time TV moms on Happy Days.
Madeleine Albright
The the Secretary of State is a comforting presence for the ambitious (and dreaming) Rory Gilmore.
Kathy Baker
Add the prolific character actress and Emmy nominee to the flock of faces who've passed through for just one episode.
Jon Hamm
To this day we have no idea why it wasn't just over the day Lorelai met Peyton Sanders. (OK, we do, but not just by looking at him.)
Jane Lynch
Before Glee, the Christopher Guest ensemble favorite played a nurse who was on duty at the hospital when grandpa Richard Gilmore suffers heart trouble.
Danny Strong
The meddlesome Buffy the Vampire Slayer dweeb turned Empire creator made a stop in Stars Hollow as Yale Daily News editor Doyle, Paris' first paramour after Professor Ashton passes away.
Christiane Amanpour
Of course Rory gets to meet her foreign-correspondent role model in the flesh.
Brandon Routh
One of the future Superman's earliest TV appearances was as Jess, just one of the hot bunch at the Bangles concert.
Alex Borstein
Maybe she got Seth MacFarlane his gig! The comedienne and voice of Lois on Family Guy (and real-life wife of Jackson Douglas, aka Sookie's hubby) could be seen hauling her harp around as Drella, resident harpist at the Independence Inn.