1. First, here's Aubrey Anderson-Emmons as Lily from Modern Family in 2012: Peter "hopper" Stone / Disney General Entertainment Content via Getty Images
And here's Aubrey Anderson-Emmons now: Amanda Edwards / Getty Images
2. Here's Mia Talerico as Charlie on Good Luck Charlie in 2009: Danny Feld / Disney Channel via Getty Images
And here's Mia Talerico now: 3. Here's Cali or Noelle Sheldon as Emma Geller from Friends in 2004: Warner Bros /Courtesy Everett Collection
And here's Cali and Noelle Sheldon now: 4. Here's Grace Holcomb as Baby Jenny on One Tree Hill in 2004: WB
And here's Grace Holcomb now: And here she is, finally reunited with Peyton and Jake (aka Hilarie Burton and Bryan Greenberg): 5. Meanwhile, here's Jackson Brundage as Jamie Scott on One Tree Hill in 2008: Cw Network / ©CW Network/Courtesy Everett Collection
And here's Jackson Brundage now: 6. Here's Jessica Smith as the Sun Baby on Teletubbies in 1997: PBS
And here's Jessica Smith now: 7. Here's Miles Brown and Marsai Martin on Black-ish in 2014: Greg Gayne / Disney General Entertainment Content via Getty Images
Here's Miles Brown now: Gregg Deguire / FilmMagic
And here's Marsai Martin now: Prince Williams / WireImage
8. Here's Bailey or Sienna Strull as CeCe on The Office in 2010: NBC
And here's what Bailey and Sienna Strull look like now: 9. Here's McKenna Grace as a bunch of different young versions of characters from popular TV shows: CW / ABC/Netflix
And here's McKenna Grace now: Taylor Hill / FilmMagic,
10. Here's Bailee Madison as Young Snow White on Once Upon a Time in 2012: ABC
And here's Bailee Madison now: 11. Here's Kiernan Shipka as Sally Draper on Mad Men in 2007: AMC / courtesy Everett Collection
And here's what Kiernan Shipka looks like now: Bravo / NBCU Photo Bank via Getty Images
12. Here's Iain Armitage as Ziggy Chapman on Big Little Lies in 2017: HBO
And here's Iain Armitage now: Paul Morigi / Getty Images
13. Here's Darby Camp as Chloe Mackenzie on Big Little Lies in 2017: HBO
And here's what Darby Camp looks like now: Angela Weiss / AFP via Getty Images
14. Here's Chloe Coleman as Skye Carlson on Big Little Lies in 2017: HBO
And here's what Chloe Coleman looks like now: Matt Winkelmeyer / Getty Images for Elle
15. Here's Parker McKenna Posey on My Wife and Kids in 2001: ABC
And here's what Parker McKenna Posey looks like now: 16. Here's what Blake and Dylan Tuomy-Wilhoit looked like as Nicky and Alex Katsopolis on Full House in 1993: Everett Collection / ABC
Here's what Blake looks like now: Here's what Dylan looks like now: And here's the most recent pic of them together that I could find: 17. Here's August Maturo as Marvin Eriksen (Marshall and Lily's son) on How I Met Your Mother in 2012: CBS
And here's what August Maturo looks like now: Frazer Harrison / Getty Images
18. Here's what Lennon (left) and Maisy (right) Stella looked like on Nashville in 2012: Katherine Bomboy-thornton / Disney General Entertainment Content via Getty Images
Here's what Lennon looks like now: And here's what Maisy looks like now: 19. Here's what Xolo Maridueña looked like on Parenthood in 2012: Nbc / NBCU Photo Bank / NBCUniversal via Getty Images
And here's what Xolo Maridueña looks like now: Vivien Killilea / Getty Images for Teen Vogue
20. Here's what Paul Butcher looked like on Zoey 101 in 2005: Nickelodeon
And here's what Paul Butcher looks like now: 21. And because we're in the midst of a Stranger Things- aissance as we patiently wait for Season 4, Vol. 2, let's finish up with the cast. Here's Noah Schnapp as Will Byers on Stranger Things in 2016: Netflix
And here's what Noah Schnapp looks like now: Roy Rochlin / Getty Images
22. Here's Millie Bobby Brown as Eleven on Stranger Things in 2016: Netflix / Courtesy Everett Collection
And here's what Millie Bobby Brown looks like now: Roy Rochlin / Getty Images
23. Here's what Caleb McLaughlin looked like as Lucas Sinclair on Stranger Things in 2016: Netflix / ©Netflix/Courtesy Everett Collection / Everett Collection
And here's what Caleb McLaughlin looks like now: Roy Rochlin / Getty Images
24. Here's what Finn Wolfhard looked like in Stranger Things in 2016: Netflix / Everett Collection
And here's what Finn Wolfhard looks like now: Roy Rochlin / Getty Images
25. And finally, here's what Gaten Matarazzo looked like in Stranger Things in 2016: Netflix / Everett Collection
And here's what Gaten Matarazzo looks like now: Kevin Mazur / Getty Images for Tony Awards Productions
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