5.Lindsay Lohan's very first onscreen appearance was when she played "Trick-or-Treater Dressed as Garbage" in an episode of Late Night with David Letterman in 1992.
6.Milo Ventimiglia's first acting credit was for playing "Party Guest No. 1" in an episode of The Fresh Prince of Bel-Air in 1995.
7.Sydney Sweeney's first TV role was as "Little Girl" in an episode of Heroes in 2009.
8.Three years before landing her breakout role as Miranda Bailey on Grey's Anatomy, Chandra Wilson guest-starred as "Police Officer" in a 2002 episode of Sex and the City.
9.Jon Hamm's first acting credit was when he appeared as "Gorgeous Guy at Bar" in an episode of Ally McBeal in 1997.
10.Lady Gaga started her acting career playing "Girl at Swimming Pool #2" in an episode of The Sopranos in 2001.
11.Octavia Spencer played countless unnamed characters early in her career, one of whom was "Cashier" in an episode of Malcom in the Middle in 2000.
12.Three years before his breakout role in Stranger Things, Caleb McLaughlin appeared in an episode of Law & Order: SVU as "Boy" in 2013.
13.Jennifer Lawrence's first acting credit was when she played "Mascot" in an episode of Monk in 2006.
14.Michael B. Jordan's very first acting credit was when he appeared as "Rideland Kid" in an episode of The Sopranos in 1999.
15.Olivia Colman appeared as "Mother" in an episode of Doctor Who in 2010, nine years before she won an Academy Award for The Favourite.
16.Four years before landing his breakout role as Finn Hudson on Glee, Cory Monteith played "Frat Cowboy" in a 2005 episode of Smallville.
17.Eva Longoria began her acting career by playing "Flight Attendant #3" in an episode of Beverly Hills, 90210 in 2000.
18.Before her breakout role in The Marvelous Mrs. Maisel, Rachel Brosnahan guest-starred as "Girl" in a 2010 episode of Gossip Girl.
19.Before her breakout roles in Yellowjackets and Scream, Jasmin Savoy Brown played a few unnamed characters on TV, like "Gossip Girl #2" on an episode of The Fosters in 2014.
20.Simu Liu's very first acting credit was when he appeared in a 2012 episode of Nikita as "Desk Officer."
21.And finally, Leonardo DiCaprio played "Darlene's Classmate" in an episode of Roseanne in 1991.