Alexis Bledel was 19 when she entered the role of Rory Gilmore, and 26 when the show aired its last episode.
First appearance: "Pilot" (Season 1, Episode 1)
Last appearance: "Bon Voyage" (Season 7, Episode 22)
Bledel is now 34 and most recently starred in Outliving Emily.
Lauren Graham was 33 when she first donned the caffeine addiction of Lorelai Gilmore, and 40 when she last set down that coffee cup.
First appearance: "Pilot" (Season 1, Episode 1)
Last appearance: "Bon Voyage" (Season 7, Episode 22)
Graham is now 48 and most recently starred in Max and Parenthood.
Kelly Bishop was 56 when she gifted us with Emily Gilmore, and 63 when the show ended its run.
First appearance: "Pilot" (Season 1, Episode 1)
Last appearance: "Bon Voyage" (Season 7, Episode 22)
Bishop is now 71 and is most recently known for Bunheads.
Edward Herrmann was 57 when he introduced Richard Gilmore to the world, and 64 when we said goodbye to the character.
First appearance: "Pilot" (Season 1, Episode 1)
Last appearance: "Bon Voyage" (Season 7, Episode 22)
Herrmann died in 2014 at age 71.
Keiko Agena was 27 when she brought Lane Kim into our lives, and 34 when we last left her with her newborn twins.
First appearance: "Pilot" (Season 1, Episode 1)
Last appearance: "Bon Voyage" (Season 7, Episode 22)
Agena is 42 now, with her most recent role being Ex-Best.
Scott Patterson was 42 when Luke poured his first cup of coffee for us and 49 when he last wore one of Luke's plaid shirts.
First appearance: "Pilot" (Season 1, Episode 1)
Last appearance: "Bon Voyage" (Season 7, Episode 22)
Patterson is currently 57, and was most recently in Other People's Children.
Liza Weil was 23 when she first glared as Paris Gellar, and 30 when she rode off into the intellectual sunset as the character.
First appearance: "The Lorelais' First Day at Chiltona" (Season 1, Episode 2)
Last appearance: "Unto the Breach" (Season 7, Episode 21)
Weil is now 38 and is currently on How to Get Away With Murder.
Melissa McCarthy was 30 when Sookie came into our lives, and 37 when we left her in Stars Hollow.
First appearance: "Pilot" (Season 1, Episode 1)
Last appearance: "Bon Voyage" (Season 7, Episode 22)
McCarthy is now 45, and most recently starred in Spy.
Matt Czuchry was 28 when Logan was introduced, and 30 when Logan walked away in the show's final season.
First appearance: "Written in the Stars" (Season 5, Episode 3)
Last appearance: "Unto the Breach" (Season 7, Episode 21)
Czuchry is now 38 and is currently on The Good Wife.
Milo Ventimiglia was 24 when Jess first shook up Stars Hollow, and 29 when we last saw him in Season 6.
First appearance: "Nick & Nora/Sid & Nancy" (Season 2, Episode 5)
Last appearance: "The Real Paul Anka" (Season 6, Episode 18)
Ventimiglia is now 38 and was most recently seen in Con-Man.
Jared Padalecki was 18 when Dean first gazed at Rory, and 23 when he bid the show farewell in Season 5.
First appearance: "Pilot" (Season 1, Episode 1)
Last appearance: "To Die and Let Diorama" (Season 5, Episode 18)
Padalecki is 33 now and is still on Supernatural.
