Rocky In 'The Rocky Horror Picture Show' 'Memba Him?!

English actor Peter Hinwood was 29 years old when he was cast as Rocky Horror -- the blonde Frankenstein-esque muscle man and one of Dr. Frank's creations -- in the 1975 horror musical "The Rocky Horror Picture Show."

Hinwood shared the big screen with Tim Curry as the lingerie-clad mad scientist who takes credit for Rocky, Dr. Frank N. Furter, Richard O'Brien as the doctor's long-haired servant and the castle's butler, Riff Raff ... and Susan Sarandon as the newly engaged gal who get stranded in the rain with a flat tire, Janet Weiss.

Guess what he looks like now!

Dylan Piper In 'Halloweentown' 'Memba Him?!

American actor Joey Zimmerman was just 12 years old when he was first cast as Dylan Piper -- the sarcastic Piper child who hates Halloween despite his ability to perform witchcraft -- in the Halloween fantasy film "Halloweentown" back in 1998.

Joey shared the screen with Kimberly J. Brown as the witch in training who leaves the mortal world with her siblings, Marnie Piper and Emily Roeske as the youngest Piper sibling and mischief-maker, Sophie Piper.

Zimmerman was also in the sequels including "Halloweentown II: Kalabar's Revenge," "Halloweentown High," and "Return To Halloweentown."

Guess what he looks like now!

Stu Macher In 'Scream' 'Memba Him?!

American actor Matthew Lillard was 26 years old when he was cast as Stu Macher -- the outgoing and slightly strange student attending Woodsboro High School who loves a great party -- in the horror film "Scream" back in 1996.

Matt shared the big screen with Neve Campbell as the smart and sensible gal who successfully flees from the killer, Sidney Prescott, Courteney Cox as the lens hog newscaster determined to cover and solve the town's unknown killer, Gale Weathers and Drew Barrymore as the innocent girlfriend who is murdered while making some popcorn, Casey Becker.

Guess what he looks like today at 52 years old!

Allison In 'Hocus Pocus' 'Memba Her?!

American actress and model Vinessa Shaw was just 17 years old when she was cast as Allison -- a Halloween guru, Max's crush and a high school student attending Jacob Bailey High School -- in the Halloween classic "Hocus Pocus" back in 1993.

Vinessa shared the big screen with Sarah Jessica Parker as one of the three Sanderson sisters who was awoken from the dead, Sarah, Bette Midler as the oldest and smartest sister, Winifred and Kathy Najimy as the most caring sister, Mary Sanderson.

“Come little children, I'll take thee away into a land of enchantment!"

Guess what she looks like today at 46 years old!

Alex McCord From 'RHONY' Memba Her?!

American TV personality and author Alex McCord was 34 years old when she made her debut on Bravo's reality series "The Real Housewives of New York City" back in 2008.

Joining Alex in the dramatic series included Bethenny Frankel as the 'skinny girl' empress, Ramona Singer as the turtle time wrangler with 'crazy eyes,' Luann de Lesseps as the countess and former model, Jill Zarin as the fabric store owner from Long Island, Sonja Morgan as the outgoing recent divorcee and Kelly Killoren Bensimon as the ultimate social lite and horseback rider.

Guess what she looks like today at 49 years old!

Doofy In 'Scary Movie' 'Memba Him?!

American actor and comedian Dave Sheridan was 33 years old when he was cast as Doofy -- the assistant at a local sheriff's department who disguises and keeps his bad boy image under wraps ... only to end up being the main antagonist -- in the OG comedy and parody film "Scary Movie."

Sheridan shared the big screen with Anna Faris as the sweet and innocent, Cindy, Regina Hall as Cindy's upbeat and animated best friend, Brenda, Marlon Wayans as Brenda's not-so-responsible older brother, Shorty and Shawn Wayans as the jock and Brenda's boyfriend, Ray.

Guess what he looks like today!

Leon In 'American Gigolo' 'Memba Him?!

American actor and filmmaker Bill Duke was 37 years old when he was cast as Leon James -- the pimp of Julian Kaye who was a suspect in framing Kaye of murder -- in the classic "American Gigolo" back in 1980.

Bill was cast alongside the great Richard Gere as the high-priced escort who is being accused of murdering one of his clients, Julian Kaye, Lauren Hutton as Julian's love interest and the state senator's wife, Michelle Stratton, Héctor Elizondo as a detective who is convinced Julian is guilty of murder, Detective Joe Sunday.

Duke went on to play the machine gun-toting Mac Eliot in the explosive 1987 film "Predator."

Guess what he looks like now!

'This Is The Way I Live' Rapper Baby Boy Da Prince 'Memba Him?!

New Orleans native and rapper Lawrence Cennett AKA Baby Boy Da Prince was just 23 years old when his hit song "The Way I Live" transcended into the ears of millions and became an instant banger back in 2006.

The popular track was first played on a popular radio station in New Orleans, and within three weeks ... the song hit the number one spot.

"Lil Boy still pushin' big wheels, I stack my money, lay low, and chill. Don't need to work hard that's the way I feel, I feel, I This is the way I live."

Guess what he looks like today!

Samantha The Babysitter In 'Obsessed' 'Memba Her?!

American actress Scout Taylor-Compton was just 20 years old when she was cast as Samantha -- the babysitter who naively allows a stocker to kidnap a young boy on her watch -- in the film "Obsessed" back in 2009.

Scout shared the big screen with Beyonce as the wife and mother who does not shy away from protecting her hubby, Sharon Charles, Idris Elba as the hot husband who is accused of cheating with a stalker, Derek Charles and Ali Larter as the obsessed office temp after Derek, Lisa Sheridan.

Guess what she looks like today at 33 years old!

Singer Rebecca Black 'Memba her?!

American singer and YouTuber Rebecca Black was just 13 years old when her song "Friday" went viral, becoming a banger for kids and adults all across the world and surfacing at the tops of music charts back in 2011.

The hit song first started to circulate slowly after it was released on iTunes, but became even more of a sensation around the world once the music video dropped on YouTube. The song's success landed the teen a live performance on "The Tonight Show with Jay Leno."

"It's Friday, Friday, Gotta Get Down on Friday!"

Guess what she looks like today at 25 years old!

Zeke On 'Wizards of Waverly Place' 'Memba Him?!

American actor Daniel Benson was just 20 years old when he was cast as Zeke Beakerman -- the exceptional student and cheerleader at Tribeca Prep -- in Disney's 2007-2012 series "Wizards Of Waverly Place."

Daniel shared the screen with David Henrie as the oldest Russo kid who has the ability to create his own spell, Justin Russo, Selena Gomez as Justin's sneaky younger sister who is not the most studious when it comes to her wizard trainings and school, Alex Russo and Jake T. Austin as the third Russo child who eventually loses his powers, Max Russo.

Guess what he looks like now!

Ryan Evans In 'High School Musical' 'Memba Him?!

American actor, singer and songwriter Lucas Grabeel was just 21 years old when he was first cast as Ryan Evans -- the enthusiastic singer, dancer and Sharpay's twin brother -- in Disney's "High School Musical" back in 2006.

Lucas shared the big screen with Zac Efron as the competitive yet caring boyfriend of Grabriella, Troy Bolton, Vanessa Hudgens as the charming and smart girl, Gabriella Montez, Ashley Tisdale as the bossy, hardworking and at times a tad narcissistic, Sharpay Evans, and Corbin Bleu as the independent and mature basketball player, Chad Danforth.

Guess what he looks today at 37 years old!

Spike On 'Buffy The Vampire Slayer' 'Memba Him?!

American actor and comic book writer James Marsters was 35 years old when he was cast as Spike -- the soulless turned 'good' vampire who enjoyed being a trickster -- in the 1997 drama series "Buffy The Vampire Slayer."

James was cast alongside Sarah Michelle Gellar as the cheerful and at times stubborn teenage gal, Buffy Summers, Alyson Hannigan as the eccentric and straight-A student, Willow Rosenberg, David Boreanaz as one of the evilest vampires, Angel and Nicholas Brendon as the sarcastic and loyal friend, Xander Harris.

Guess what he looks like today!

Brandon Walsh On 'Beverly Hills 90210' 'Memba Him?!

Canadian native and actor Jason Priestley was just 21 years old when he first started playing Brandon Walsh -- the All-American boy attending West Beverly Hills High on the teen drama series "Beverly Hills 90210" back in 1990.

Priestley was cast alongside Brian Austin Green as the hard-working freshman who owns the mic during school announcements, David Silver, Tori Spelling as the cute blonde who loves nothing more than shopping, Donna Martin, Luke Perry as the 'too cool for school' boy, Dylan McKay and Jennie Garth as the school's most popular girl, Kelly Taylor.

Guess what he looks like now!

Jeana Keough From 'RHOC' 'Memba Her?!

American TV personality and realtor Jeana Keough was 50 years old when she made her debut on Bravo's first 'Housewives' franchise, "The Real Housewives of Orange County" back in 2006.

Joining Jeana in the dramatic series included her neighbor and friend Vicki Gunvalson as the insurance company owner and queen of "whoopin' it up," Tamra Judge as the fitness queen and Vicki's partner in crime, Lynne Curtin as the jewelry designer and Tammy Knickerbocker as Jeana's bestie.

Jeana was the recipient of Tamra's iconic wine slap during the 2011 season 6 finale.

Guess what she looks like today at 66 years old!

'What Does The Fox Say' Singer Bard Ylvisaker 'Memba Him?!

Norwegian native and comedian Bard Ylvisaker was 31 years old when his hit song 'What Does The Fox Say' went viral on YouTube back in 2013. The hit track has accumulated more than one billion views and peaked at number six on the 'Billboard Hot 100.'

Bard shared the iconic song with his brother Vegard Ylvisaker, and the two hosted the Norwegian talk show, 'I kveld med YLVIS' from 2011 - 2016, where they created original skits such as 'Trapped In Ikea' ... this was also during the time of 'What Does The Fox Say's inception.

See what he looks like today!