Memba Them

American reality star Jonny Drubel was 24 years old when he was cast to be a part of "Rich Kids of Beverly Hills" -- E!'s hit reality show, first airing in 2014 and running for four seasons.

Johnny brought the bougie-ness and cruised down Rodeo Drive with some of television's flashiest stars including Morgan Stewart as the blonde blogger searching for career success, Dorothy Wang as the daughter of a billionaire, Brendan Fitzpatrick as the Beverly Hills real estate agent, and EJ Johnson as the son of Magic Johnson, trying to make his own name for himself.

American actress Lindsay Sloane was 22 years old when she was cast as Big Red -- the captain cheerleader at Rancho Carne High School who tends to be bossy, full of herself and guilty of stealing cheers from other schools -- in the 2000 cheerleading film "Bring It On."

Lindsay shared the big screen with Kirsten Dunst as the new team captain, Torrance Shipman, Gabrielle Union as Torrance's rival cheer captain, Isis, Eliza Dushku as the new student and gymnast turned cheerleader, Missy Pantone and Jesse Bradford as the electric guitar player and Torrance's crush, Cliff Pantone.

American actress Nikki Blonsky was just 18 years old when she was cast as Tracy Turnblad -- the positive and optimistic high school student who does not necessarily fit in with the popular kids -- in the 2007 film 'Hairspray.'

Nikki shared the big screen with John Travolta as a laundry business owner and Tracy's mother, Edna Turnblad, Zac Efron as the talented and cocky lead male dancer, Link Larkin, Amanda Bynes as Tracy's best friend, Penny Lou Pingleton, and Queen Latifah as a radio DJ, Motormouth Maybelle.

Before this golden gal with blunt bangs turned into one of Hollywood's newest and hottest upcoming stars, she was just swinging her bat, dressin' up for her t-ball banquet and growing up in Spokane, Wash.

This cute kid now stars in a popular TV show that first hit the big screen in 2019, and her career has continued to sore. When she's not memorizing lines, you can find her under the hood of her truck fixing up her Ford Bronco.

Need one more little nudge on guessing this cutie? Just ask her on-screen sister Maude Apatow.

American actress Sarah Utterback was 23 years old when she first started playing the role of nurse Olivia Harper -- the nurse at Seattle Grace Hospital known for being awkward and snarky -- on ABC's "Grey's Anatomy" from 2005 to 2009.

Sarah shared the screen with Ellen Pompeo as the feisty and serious doctor, Meredith Grey, Patrick Dempsey as the warm and charismatic doctor, Derek Shepherd, Katherine Heigl as the compassionate doctor, Izzie Stevens and Sandra Oh as the ambitious doctor, Cristina Yang.

Sarah made a stop at Grey Sloan Memorial Hospital and reprised her role in 2018.

American fitness instructor and television personality Tony Little was in his mid 20's when he became known as a true fitness guru and infomercial icon back in the 80s.

As a former 'Mr. Florida' and a 'Junior America' bodybuilding champion, Tony's fitness career started climbing when he executed fitness and exercise programs after sustaining numerous injuries in a car accident.

His most iconic piece of equipment is the 'Gazelle' which ultimately looks like an elliptical. Not only were his products well-known, but his infomercials became popular because of his long blonde locks and stage presence.

American reality television star Jordan Eubanks was just 21 years old when he was cast to be a part of "The Hills" -- MTV's hit reality show, first airing in 2006 and taking place in Los Angeles, California.

Jordan contributed to the series' drama along with narrator and star Lauren Conrad as the fashion student who journeyed from Laguna Beach to Los Angeles, Heidi Montag as Lauren's bubbly bestie and party girl, Spencer Pratt as Heidi's 'bad boy' boyfriend and Whitney Port as Lauren's work buddy at Teen Vogue.

American actor and musician Nate Richert was just 18 years old when he started playing Harvey -- the on-again, off-again boyfriend and a usual victim of Sabrina's spells -- on the 1996-2003 sitcom "Sabrina the Teenage Witch."

Nate was cast alongside Melissa Joan Hart as the welcoming, generous and funny teenage witch, Sabrina, Beth Broderick as one of the sisters and witches who took in Sabrina, Ciocia Zelda, Caroline Rhea as the other sister and witch who looked after Sabrina, Hilda Spellman and Nick Bakay as the 500-year-old witch disguised as a black cat, Saberhagen.

The pop rock band 'Hanson' emerged on the music scene back in the early 90s and has continued to captivate their fans for decades. Their 1997 hit song "MMMBop" put the stamp on their success and fame.

'Hanson' consists of brothers Isaac Hanson, Taylor Hanson and Zac Hanson. All three of the bros sing and share instrument duties including guitar, drums, bass and piano. Their 1997 album "Middle of Nowhere," which included the track "MMMBop," scored three Grammy nominations and hit the top of the music charts all over the world.

'Mmmbop, oh yeah!'

American actress, adult film star and model Bree Olson was just 20 years old when she was hired as the nanny for youngsters Kendall and Kylie Jenner on Season 1 of "Keeping Up With The Kardashians" back in 2007.

During the first season of KUWTK, Bree was accompanied by Kim Kardashian who was just getting her toes wet, Kourtney Kardashian and Khloe Kardashian who ran the family's clothing stores "DASH" and "Smooch," Rob Kardashian who was finishing up college, Caitlyn Jenner was on carpool duty and Kris Jenner who was playing 'Momager' for her daughters.

Comedian and actress Hana Mae Lee was 23 years old when she was cast as Lilly Onakuramara -- the beatboxing Bella who barely speaks in her college acapella group -- in the 2012 rom-com 'Pitch Perfect.'

Hana shared the Pitch Perfect trilogy stage with fellow Barden Bellas Anna Kendrick as the rebellious and talented Bella, Beca, Rebel Wilson as the confident and encouraging Bella, Fat Amy, Brittany Snow as the caring and affectionate Bella, Chloe, Anna Camp as the uptight and conservative Bella, Aubrey and Elizabeth Banks as one of the sarcastic commentators, Gail.

England native and actress Jessica Smith was barely one-year-old when she was cast as the original Sun Baby -- the shining Teletubby that innocently giggles at other fellow Teletubbies and gets excited during Magic Events -- from 1997 to 2001 in the show 'Teletubbies.'

Jessica's baby voice was accompanied by the Teletubby voices of Nikky Smedley as Laa-Laa, Simon Shelton as the oldest and tallest Teletubby, Tinky-Winky, Jon Simmit as the sarcastic and often stubborn Teletubby, Dipsy and Pui Fan Lee as the smart and silly Teletubby, Po.

American actor Jason Lewis was 32 years old when he was cast as Smith Jerrod -- a rising actor who eventually makes his big break and falls in love with Samantha Jones -- in HBO's "Sex And The City."

Jason was accompanied by fellow castmates Sarah Jessica Parker as Carrie Bradshaw, Kim Cattrall as Public Relations executive, Samantha Jones, Kristin Davis as art gallerist, Charlotte York, Cynthia Nixon as corporate lawyer Miranda Hobbes and Chris Noth as entrepreneur and financier, Mr. Big.

Jason also reprised his role in both "Sex And The City" films.

American medium and psychic Allison DuBois was 38 years old when she lit up her electric cigarette and sparked up the verbal brawl on season one of "The Real Housewives of Beverly Hills."

Accompanying Allison to the 'Dinner Party From Hell' included the leader of the pack, Kyle Richards, Kyle's partner in crime, Faye Resnick, the intelligent restaurateur, Lisa Vanderpump and the 'queen of Malibu,' Camille Meyer (formerly known as Camille Grammer).

Allison's professional success landed her the television mystery series 'Medium,' starring Patricia Arquette which ran for 7 seasons.

American actress and fashion designer Michael Michele was 36 years old when she was cast as Judy Spears -- the smart and sassy advertising representative who mysteriously attempts to humiliate and set up her coworker -- in the 2003 romance/comedy film "How To Lose A Guy in 10 Days."

Michael shared the big screen with big stars including Kate Hudson as the independent and intelligent journalist, Andie Anderson, Matthew McConaughey as the hot advertising guy, Benjamin Barry, Kathryn Hahn as the desperate girlfriend, Michelle Rubin and Adam Goldberg as one of Ben's sidekicks, Tony.

Los Angeles native and actor Wesley Jonathan was 23 years old when he was cast as Gary Thorpe -- the blunt guy who gives his friends harsh advice but is an overall loyal friend -- in the 2002-2006 sitcom series 'What I like About You.'

Wesley was cast alongside Jennie Garth as the detail-oriented and organized older sister, Valerie Tyler, Amanda Bynes as the confident girl with a know-it-all personality, Holly Tyler, Leslie Grossman as the superficial gal trying to impress her boss, Lauren and Nick Zano as the laidback bike messenger, Vince.