Miranda Cosgrove was ripe for college when iCarly ended and that's exactly what she did by attending The University of Southern California, according to Insider.com. You might also recognize her voice from playing Margo in the hit Disney animated "Despicable Me" movie series. As of 2020, she was also set to star in a film about pro skating called "North Hollywood" and had recently made a guest appearance on the comedy show "The Goldbergs" (via IMDb).

Jerry Trainor, who played Carly's spaghetti taco-loving older brother and guardian, Spencer, has continued to act in children's and young adult programming. 

In recent years, he has appeared on the Nickelodeon series "Wendell and Vinnie" and "No Good Nick," and Jerry Trainor now has a stunning net worth. Like Cosgrove, he has also lent his voice to roles, including on the show "T.U.F.F. Puppy." Trainor also veered away from Nickelodeon over to the Disney Channel where he made a one-shot appearance on "Bunk'd" (via Insider).