1. Tia and Tamera Mowry as Tia and Tamera in Sister, Sister Paramount Television, @tiamowry / Via instagram.com The last episode of Sister, Sister aired in 1999, when the sisters were 21. They're now 39. Tia went on to play medical student Melanie Barnett on The comedy-drama series The Game and recently starred in Nickelodeon's comedy sitcom Instant Mom; she also has a cookbook, Whole New You. She is married to actor Cory Hardrict and is expecting her second child. Tamera is also married, and she has two children with husband Adam Housley. She's one of the hosts of talk show The Real 2. Hilary Duff as Lizzie McGuire in Lizzie McGuire Disney / Via disney.go.com, @HilaryDuff / Via Twitter: @HilaryDuff Hilary Duff is now 30 and has starred in A Cinderella Story and Cheaper by the Dozen. She also makes music – her most recent album, Breathe In Breathe Out, came out in 2015. 3. Brandy Norwood as Moesha in Moesha ABC / Via abc.go.com, @4everbrandy / Via instagram.com Brandy is now 38 and probably more known as Brandy the singer. She has sold over 30 million records worldwide, making her one of the best-selling female artists in music history. She was also Disney's first black princess, playing Cinderella in a made-for-TV film alongside THE Whitney Houston. 4. Melissa Joan Hart as Clarissa in Clarissa Explains It All Paramount Home Entertainment / Via paramount.com, @melissajoanhart / Via instagram.com Following Clarissa Explains It All, Melissa went on to do some pretty good television shows. She played Sabrina in Sabrina the Teenage Witch and then Melissa in Melissa & Joey. 5. Sarah Michelle Gellar as Buffy Summers in Buffy the Vampire Slayer Fox / Via fox.com, @sarahmgellar / Via instagram.com Sarah Michelle Gellar has a lot going on these days. Of course she still acts, and she has been in a few movies and TV shows since Buffy. But she is now also a mum, a cookbook author, and the cofounder of a baking company. 6. Mayim Bialik as Blossom Russo in Blossom Impact Zone Productions, @missmayim / Via Instagram: @https://www.instagram.com/missmayim/?hl=en Mayim Bialik is still acting, you've probably seen her play Amy Fowler in The Big Bang Theory, a role she has won two Emmy awards for. She is also a real-life neuroscientist. 7. Mark-Paul Gosselaar as Zack Morris in Saved by the Bell NBC Production, @mpgosselaar / Via Instagram: @https://www.instagram.com/mpgosselaar/?hl=en Mark-Paul Gosselaar is married with four kids, and according to his Instagram he loves outside sports. He is still acting, and recently played Mike Lawson in a TV show called Pitch. 8. Lisa Bonet as Denise Huxtable in The Cosby Show Carsey-Werner Company, @prideofgypsies / Via Instagram: @prideofgypsies Lisa Bonet literally looks the exact same. She is still acting and has appeared in a few shows since The Cosby Show. She is married to Game of Thrones star Jason Momoa and has three kids including Zoe Kravitz. 9. Tisha Campbell-Martin as Gina Waters in Martin You Go Boy! Productions, @tishacampbellmartin / Via instagram.com After Martin, Tisha played another brilliant role as Jay in My Wife and Kids, which ended in 2005. She now concentrates on her music career – her latest single is called Lazy Bitch. She is married to actor Duane Martin and the couple have two sons. 10. Jaleel White as Steve Urkle in Family Matters Bickley-Warren Productions, @jaleelwhite / Via Instagram: @https://www.instagram.com/jaleelwhite/?hl=en The Steve Urkle role is still iconic, but Jaleel has done some pretty big things since the show ended. He voiced Sonic the Hedgehog in the series Adventures of Sonic the Hedgehog and in the film Sonic. He also appeared in the film Dreamgirls and had a comedy series called Me, Myself & I. 11. Lori Loughlin as Becky Katsopolis in Full House Jeff Franklin Productions, @loriloughlin / Via Instagram: @loriloughlin Since Full House, Lori appeared in 90210 and Beverly Hills 90210. She is now 53, and has two daughters. She also appears as Becky Katsopolis in the reboot of Full House, Fuller House. 12. Sara Gilbert as Darlene Conner in Roseanne Wind Dancer Productions, @thesaragilbert / Via instagram.com After Roseanne Sara stayed on our television screens – she has a recurring role in The Big Bang Theory and is cohost and creator of a daytime talk show called The Talk. She also has two children with television producer Allison Adler, and is married to musician Linda Perry. 13. Erika Alexander as Maxine "Max" Felice Shaw in Living Single Park Boulevard, Columbia/Warner Bros., @erikaalexanderthegreat / Via instagram.com If you watched Get Out, you will see that Erika played Detective Latoya. She has appeared in a few films and shows since Living Single, and she writes too. 14. Jenna Leigh Green as Libby Chessler in Sabrina the Teenage Witch Finishing the Hat, @jennaleighgreen / Via instagram.com Jenna's Twitter bio is literally "that girl from that show," and although she is best known for being on Sabrina the Teenage Witch she's still in the acting business. She recently appeared in the TV series Quantico. 15. Kel Mitchell as Kel Kimble in Kenan and Kel Nickelodeon, @Iamkelmitchell / Via Instagram: @https://www.instagram.com/iamkelmitchell/?hl=en Kel is more into his stand-up work than his acting these days, and he is currently on tour. He still works with Nickelodeon, and he appears on the show Game Shakers. He is married with kids and is apparently still friends with Kenan. 16. Tahj Mowry as T.J. Henderson in Smart Guy Danny Kallis Productions, @tahj_mowry / Via instagram.com You might not know this, but Tahj is Tia and Tamera's brother. After Smart Guy he voiced Wade Load in Kim Possible and now plays Tucker Dobbs in the comedy show Baby Daddy. 17. Laura Prepon as Donna Pinciotti in That '70s Show CBS Studio Center, @lauraprepon / Via instagram.com Laura is probably more known now for her role as Alex on Orange Is the New Black than as Donna. Since That '70s Show, she has pretty much stayed acting – she recently appeared in The Girl on the Train and in the drama The Hero alongside Sam Elliott.