All the Guest Stars You 100% Forgot Were on Girls

Girls will air its final season starting on Feb. 12 and we can't help but look back on all the gems the HBO series has given us over the years. Most importantly: the epic cast.

Of course, there’s the iconic foursome: Hannah Horvath (Lena Dunham), Marnie Michaels (Allison Williams), Jessa Johansson (Jemima Kirke), and Shoshanna Shapiro (Zosia Mamet). But aside from the core cast members, Girls also gave us a rotating list of amazing guest stars over the years. This season will be no exception with a roster of talent like Riz Ahmed (pictured above), who you recognize from The Night Of and Star Wars: Rogue One, Joy Bryant, Chelsea Perretti, and Matthew Rhys.

Scroll down to see all the famous faces who've come through. Then, tune in to HBO on Sunday, Feb. 12 at 10 p.m. ET for the season premiere of Girls.

Hoffmann stars as Caroline in the series, the hippy sister of Adam Sackler (Adam Driver), who has a baby with Hannah's neighbor, Laird (Jon Glaser).

In Season 2, Jessa hastily marries a venture capitalist named Thomas-John, played by O'Dowd.

Who can forget Mimi-Rose (Gillian Jacobs)? Adam dates her briefly after he and Hannah break up.

Rita Wilson makes a few appearances throughout the series as Marnie's mother, Evie Michaels. Most recently, she was at her daughter's wedding to Desi (Ebon Moss-Bachrach).

Shoshanna dates her boss, Scott (Jason Ritter), until she goes to Japan and realizes she wants to stay there forever.

Katherine (Kathryn Hahn) is the mother of the two young girls Jessa babysits in the first season.

Remember the handsome Dill Harcourt (Corey Stoll)? Elijah Krantz (Andrew Rannells) dates the Anderson Cooper-like TV personality briefly.

After Hannah and Adam parted ways (part I), he dated Shiri Appleby's character, Natalia.

While we all want Jenna Lyons to be our boss, Hannah gets to work with her at GQ magazine in the third season.

Abigail (Aidy Bryant) works with Shoshanna in Tokyo, but is forced to lay off Shosh and send her back home when the company is in peril.

Judd Apatow's daughter makes an appearance in Season 4 as Cleo, one of Hannah's students.

Patti LuPone plays herself for a brief cameo where she gives Hannah relationship advice after Adam scores a big theatre gig.

Who could forget Mimi-Rose's ex-boyfriend Ace (Zachary Quinto)? We did!

Hannah runs into an old friend, played by Jenny Slate, at just the right moment: when she's trying to process Adam and Jessa's new relationship.

The second season kicked off with a steamy romance between Hannah and Sandy, played by Donald Glover.

You may remember Amy Schumer as the disgruntled BFF of Shiri Appleby's character, Natalia, who confronts Adam in front of Hannah about the terrible way he ended things with her.

During one of Marnie and Desi's break-ups, Desi dates a very spiritual Tandice, played by Bonet.

Hannah has an intense, one-day fling with a wealthy doctor played by Wilson. Two words: ping pong.

Thadd (Bobby Moynihan) is the officiant at Jessa's wedding to Thomas-John.

Felicity Jones makes a brief appearance in the series as Dottie, the daughter of an older man that Jessa is dating. She doesn't like the match one bit.

On the show, Adam nabs a small part in a procedural TV series alongside Lucy Liu, who actually stars in a procedural in real life (CBS's Elementary).

In Season 1, Shoshanna meets up with a guy she knew from summer camp (played by Astin) with hopes that he'll take her virginity. Things definitely don't go as planned.

When Jessa goes to rehab, she meets Brooks' character, Laura. They get quite friendly with one another.