"Riverdale" aired its series finale on Wednesday night on The CW.
There are only a few cast members who appeared on both the series premiere and the final episode.
Here's how the actors looked on their first to their last episodes.
KJ Apa was unknown in Hollywood prior to his big break as Archie Andrews on "Riverdale."
The actor, who's from New Zealand, is a natural brunette who dyed his hair red for his role as the titular character of Archie Comics.
"Riverdale" premiered in January 2017, centering on Archie as a sophomore at Riverdale High. He had aspirations of being a singer-songwriter, but in the final season, after getting sent to the '50s, he struggled with his identity and what his future would entail.
He ultimately became a professional construction worker, similar to his late dad Fred Andrews, and also pursued writing at an amateur level.
Lili Reinhart played Betty Cooper, the girl next door with a dark side.
Similar to her comic-book counterpart, Betty styled her blonde hair in a ponytail for most of the show. It wasn't until later seasons that she changed her look for more mature hairstyles.
Betty struggled with her inner darkness as a result of a serial killer gene that she inherited. On the seventh and final season, her journey was centered on self-discovery, exploration of her sexuality, and wanting to break free of social norms.
For seven seasons, Cole Sprouse's Jughead Jones served as the narrator of "Riverdale."
Jughead viewed himself as the unofficial chronicler of the small town. The show paid homage to his comic-book counterpart by having Sprouse wear a crown-like beanie.
Camila Mendes played the fashionable, business-savvy Veronica Lodge.
She was the talk of the small town when she arrived from New York City at the start of the show.
Despite being of a higher class and acting a bit haughty at first, she became good friends with Betty and rounded out the show's core four characters, comprised of the girls, Archie, and Jughead.
Throughout "Riverdale," Veronica proves to be a gifted entrepreneur and negotiator. She had various business ventures, from launching a maple rum company to owning a cinema. So, it was no surprise that in the end, Veronica ultimately made a name for herself as a Hollywood producer.
Madelaine Petsch turned Cheryl Blossom from an icy character to an endearing one.
At the onset, Cheryl was aggressive and snobby. But as more of her family's tragedies and Cheryl's own struggles came to the surface, viewers were able to sympathize with the cheerleader.
Casey Cott put his musical skills to work as Kevin Keller throughout the show's seven-season run.
As "Riverdale" went on, storylines became more convoluted and bizarre. Musical episodes also became a part of the show's DNA, for better or for worse.
Kevin, a musical theater lover, went all-in as the titular character of the popular play "Hedwig and the Angry Inch" on season four.
And on season six, he performed various musical numbers inspired by the 2000 thriller film "American Psycho."
Mädchen Amick played Alice Cooper, Betty's overbearing but (mostly) well-intentioned mom.
Prior to "Riverdale," Amick was already an established TV star thanks to her role as Shelly Johnson on the TV series "Twin Peaks."
Of all the actors who played parents to the "Riverdale" teens, she's the only one who appeared on the show's series premiere and its final episode.
Pop Tate, played by Alvin Sanders, was the heart of "Riverdale."
His diner, Pop's Chock'lit Shoppe, was a staple in Riverdale. It was a frequent meeting place for the characters, filled with endless milkshakes and burgers.
On the series finale, it was revealed that Terrence "Pop" Tate died in his sleep in September 1956, shortly after the kids started their senior year of high school.
Cheryl's beloved twin brother Jason Blossom, played by Trevor Stines, was killed off in the series premiere but had various appearances on the show, including the season seven finale.
"Riverdale" kicked off with Jason seemingly drowning in Sweetwater River after going on a boat ride with Cheryl on July 4. It was later revealed that his dad, Clifford Blossom actually murdered him.
Despite his death, "Riverdale" somehow managed to find ways to integrate the character into the show's story.
On the series finale, he had a cameo during the final scene, when Betty died and joined all her loved ones in the Sweet Hereafter.
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