Allison Williams (Marnie Michaels)

Allison starred in “Girls” as Marnie Michaels, Hannah’s best friend who was known for her over-the-top, passive-aggressive behavior. Allison Williams went on to star in Jordan Peele’s “Get Out,” as well as “A Series of Unfortunate Events.” She additionally starred in the TV movie “Peter Pan Live!” She went on to star in the Netflix film, “The Perfection,” and is also in the horror thriller “M3GAN.” 

Adam Driver (Adam Sackler)

Before Adam Driver was well known, he was still getting his start and auditioned for Dunham, in what she calls a “powerfully odd,” audition. “He came into the audition and we were like, ‘This guy’s a freakin’ weirdo,’” Dunham said. Showrunner Jenni Konner recalled, “He became the handsome movie star that he is now over the seasons.” As far as his time since “Girls,” Adam Driver has starred in several films like the Star Wars series, “While We’re Young,” “This Is Where I Leave You,” “The Last Duel,” “House of Gucci,” and several other major films.