Casey, Sam's little sister, is played by nonbinary actor Bridgette Lundy-Paine, and is one of the best parts of the show. Early on, she was dating a boy, but after a rivalry with fellow runner Izzie turned into a friendship, and then something more, she realized she may not be straight.
Now in this fourth season, we get to see the fallout from that, and what happens when her and Izzie's parents find out about their relationship. When you're in the middle of figuring out what kind of adult you want to be, trying to navigate a relationship becomes a thousand times more dramatic.
"I was just wondering if you're going to tell dad about you and Izzie," Casey's mom asks in the trailer.
"I think the answer is...butt out!" Casey retorts.
Casey knows that her mom supports her, but for Izzie, it's not so simple. "You have these parents who support you so much it drives you nuts. My mom thinks me dating girls is just a phase," Izzie tells her.
"You have a support system. I am a support system." Casey replies, "I am your support system." Hopefully, we'll get a happy ending for Casey and Izzie. We're gonna be rooting for them!
This upcoming fourth season will be the final one of the series, which stars Keir Gilchrist as autistic teen Sam Gardner, Jennifer Jason Leigh as his mom, and Michael Rapaport as his father. Early on, the show was criticized for its lack of autistic writers and actors, and the inaccuracies in portraying an autistic character that resulted. Starting in the second season the show started featuring more writers and actors with autism.
The final season of Atypical premieres Friday, July 9 on Netflix. Check out the trailer for the upcoming season below!