Seeing actors age on the screen is a stark reminder of time's inexorable and merciless march forward.
It's been strange enough seeing once youthful celebrities, like Harrison Ford, start to sprout gray hair and take on wrinkles, but what's even more bizarre and jarring is seeing child stars suddenly morph into fully functioning adults!
I wouldn't have even recognized some of the following actors all grown up - see if you can!
Porter starred opposite James Belushi in 1991's Curly Sue; a role which she's still best known for. She's now put her acting on hold and is focusing on her music career.
You might recognize Richert from Sabrina, the Teenage Witch in which he played Sabrina's boyfriend Harvey Kinkle. After completing his post-puberty hipster metamorphosis, Richert decided to pursue a career in music.
Abigail burst onto the movie scene after wowing critics and audiences alike with her fantastic portrayal of Olive Hoover in 2006's Little Miss Sunshine. Her career has only blossomed since then, netting roles in Ender's Game, Zombieland and August: Osage County.
I'm sure that the hunky Vampire Diaries star still takes flak off his friends for this embarrassing early photoshoot! He can have the last laugh though, as it ultimately led him to international fame.
Spy Kids was one of my favorite movies as a youngster, but despite that I still barely recognized Vega as an adult! The 26-year-old is now married to actor and singer Carlos Pena, Jr.
Jamie Walters had the honor of appearing in both the original Beverly Hills 90210 and the remake. Today he helps save lives working for the Los Angeles City Fire Department. What a hero!
Keshia Knight Pullman
You'll likely recognize this adorable tiny tot as Rudy Huxtable from The Cosby Show. More recently, Pullman took a dive on ABC's Splash, being the very first celebrity eliminated.
Hughes was barely walking when he started his career at age two! Since then he's appeared alongside Arnold Schwarzenegger in Kindergarten Cop, before taking to the moon in Apollo 13.
Which child star transformation shocked you the most?
[Source: Parent Society]