Meet the Cast That's Bringing the Beautiful Story of Love, Simon to Life

Fresh off the success of 13 Reasons Why, Langford hops on board as Leah, Simon's longtime best friend who may or may not be a bit infatuated with him.

It should come as no surprise that Jennifer Garner is playing Simon's mom. She's such a mom. The best mom. Emily and Simon really have a special relationship, and it's cool to see it come to life onscreen.

We'll see Jorge Lendeborg Jr. join as Nick, the fourth member of Simon's squad! He has a bit of a thing for Abby. Everyone can tell.

If you fell in love with Rothwell as Kelli on Insecure, prepare to love her even more. She's downright delightful as the school drama teacher.

Miller portrays a rather unlikely antagonist in Martin Addison. Martin's all up in the drama department at the school, and he's unbearably awkward and not too socially apt. This causes him to make some questionable decisions.

Bram is kind of a tertiary member of Simon's squad. Simon believes early on that Bram is his secret penpal, but his hopes are dashed when he catches Bram kissing a girl at a huge Halloween party.

Cal's another member of the school drama department. Simon starts to think Cal could be his mysterious email buddy based on a handful of context clues.

Haynes will play Kevin, the college guy who picks Simon up at a bar.