Throughout Hollywood, there are plenty of stars who are rocking their bald head, including The Rock. These celebrities weren't always bald, though. Once upon a time, they all had a full head of hair, a drastic change from their now well-known looks.
Take a look because the before and after shots of these men's hair are insane!
Woody Harrelson Looks Unrecognizable

Actor Woody Harrelson rose to prominence as the bartender Woody Boyd on the popular sitcom Cheers. For fans of the series, this look is probably familiar. For others, Harrelson with hair might be a strange concept considering, in recent years, his head has been shiny and bald.
It's amazing to think he once had flowing blonde locks!
Woody Harrelson Embracing His Bald Head

Throughout the years, Woody Harrelson's hairline kept receding. Eventually, the actor took the plunge and decided it was time to shave it all off. The result: a star who actually looks healthier with a bald head!
While he rocks his bald head in real life, a lot of recent projects had Harrelson sporting a wig, such as The Glass Castle and Venom: Let There Be Carnage.
John Travolta Was A Greaser For A Reason

Honestly, if it wasn't because of his acting, the only other reason John Travolta was cast as Danny Zuko in Grease was because of his thick head of greaser-perfect hair. It's literally straight out of the '50s and looked magnificent.
That's why it was such a shock to people when he decided to go with the flow and shave it all off!
John Travolta Kind Of Looks Like A Villain

After years of sporting some of the best hair in Hollywood, actor John Travolta decided to give in to Mother Time and shave it all off. Not that he looks bad, but Travolta is definitely channeling more of a villain vibe than greaser with this look.
Well, at least the look was on point when he portrayed Ryder in The Taking of Pelham 123.
Bruce Willis With A Full Head Of Hair In the '80s

Die Hard star Bruce Willis had a full head of hair throughout the '80s and '90s, arguably his heyday in Hollywood. From the action franchise to The Fifth Element, Pulp Fiction, and 12 Monkey, Willis always had his dark locks on top of his head.
It wasn't until the early 2000s that he changed his style.
Bruce Willis Went Bald In the Early 2000s

For many people, a bald Bruce Willis is more recognizable than one with hair on his head.
In the early 2000s, Willis began balding, resulting in him shaving his head to this spectacular display of a man who is able to not only rock the no-hair look but makes it look incredibly tough. Seriously, this would have been a great look during his Die Hard days!
Jon Cryer With Shoulder-Length Hair

Fans might recognize Jon Cryer as the actor who played the role of Alan Harper on Two and A Half Men.
Since he is kind of in a losing battle with his hair during that series, it might be interesting to see him here, during the '80s, with a full head of shoulder-length hair!
Jon Cryer Channeling His Character, Lex Luthor

Jon Cryer began losing his hair during his time on Two and a Half Men. As it turned out, his stellar bald head worked in his favor when it came to casting.
In 2018, he was cast as the villain Lex Luthor, a notoriously bald villain, in The CW series Supergirl.
Samuel L. Jackson Had Hair In the '90s

Samuel L. Jackson is known as the actor who didn't jump into Hollywood right away. In fact, he studied marine biology and architecture in college before moving on to drama!
When he finally rose to fame in films such as Coming to America and Goodfellas, Jackson was rocking some serious hair on his head! It's a long cry from the bald head he is known to sport today.
Samuel L. Jackson With His Signature Blad Head And Glasses

While Samuel L. Jackson is typically seen walking around Hollywood wearing a hat, there is no hiding the fact that he is totally bald.
The thing is, the look works for him, especially considering some of the "boss man" type roles he's been playing recently, namely Director Nick Fury who has the pleasure at yelling at Earth's greatest heroes, the Avengers.
Stanley Tucci Still Had Hair In The 1990s

While Stanley Tucci appeared in numerous projects throughout the '80s, his breakthrough wasn't until the 1990s, in the television series Murder One. For his performance in the series, Tucci earned his first Primetime Emmy Award nomination.
It was also around this time that the actor was still rocking a bit of hair. It was a little bit of hair, and it was white, but it was hair, nonetheless!
Stanley Tucci's Signature Look: A Bald Head And Glasses

Stanley Tucci has made his way across multiple film genres, jumping from the dystopian world of The Hunger Games into the MCU in Captain America: The First Avenger.
Even with all of his quirky makeup and wigs, one fact remains the same: he absolutely rocks his signature style of a bald head with thick-rimmed glasses.
Vin Diesel Looks Different With His Scruffy Hair

It took a while for Vin Diesel to make his way to Hollywood. But after gaining the attention of director Steven Spielberg, it was pretty much a straight shot to the top with projects like the Fast and Furious franchise, XXX, and The Chronicles of Riddick.
And, for those who remember those films, Diesel rocked some scruffy hair!
Vin Diesel Was Made For A Bald Head

Vin Diesel is one of those actors that looks as though they were bred to rock a bald head later in life. He looks as though he embodies one of his more popular characters, Fast and Furious' Dom Toretto, with this no-nonsense look.
Needless to say, Diesel gets a top score for this glow-up.
Dwayne "The Rock" Johnson

When Dwayne "The Rock" Johnson first broke into Hollywood, he was sporting an interesting hairstyle. It was literally nothing more than a tuft of hair on the top of his head (Walking Tall, anyone?)
Honestly, it was only a matter of time before the wrestler-turned-actor took a razor to his head and got rid of it.
Dwayne "The Rock" Johnson

Finally, in the mid-2000s, Dwayne "The Rock" Johnson evolved into the highly recognizable actor he is today -- bald-headed with muscles bulging out of his clothing.
With action-packed projects such as the Fast and Furious franchise, San Andres, and even the upcoming Black Adam movie, The Rock's bald head brings a little something extra to his roles.
Michael Keaton With A Thick Head Of Hair

Throughout the '80s and '90s, Michael Keaton rocked what was one of the thickest heads of hair in Hollywood. At least when it came to male celebrities. His curly hair was showcased in films such as Batman and Batman Returns and, although it's green, Beetlejuice.
Seriously, Keaton's hair looked as though it was there to stay!
Michael Keaton And His Hair: A Sad Love Story

While he is not completely bald, Michael Keaton's hair decided it was time to turn in once the 2000s hit. Even though he is still highly recognizable, Keaton definitely lost some of his charm when he began to bald.
Even so, his new style helps with his villainous characters, such as Vulture in Spider-Man: Homecoming.
With Hair, Laurence Fishburne Looks Like A Different Person

Laurence Fishburne has gone through many looks during his decades as an actor in Hollywood. For example, throughout the '70s, '80s, and '90s, he sported some thick hair on the top of his head.
During those decades, some of his more notable projects were What's Love Got To Do With It, TriBeCa, and Two Trains Running.
Laurence Fishburne, Aka Morpheus

Fans got a first look at Laurence Fishburne in all of his bald glory when he landed the role of Morpheus in the Matrix films. Even though he could still grow hair, Fishburne opted for a more "boss man" look for the role, and it worked!
Some of his other notable portrayals include Special Agent Jack Crawford in Hannibal and Perry White in the DCEU, starting with Man of Steel.
Channing Tatum Can Grow Hair...

Channing Tatum made his way to the Hollywood spotlight in the early 2000s, with his breakthrough role in the dance movie Step Up.
While he didn't really have a head of hair in the film, fans of the actors soon learned that he could actually grow a thick head of dark brown hair, as seen in She's The Man.
Channing Tatum Just Choses To Buzz His Head A Lot

While it is known that Channing Tatum can surely grow his hair out, he seems to prefer it cropped a bit closer to his head.
Interestingly enough, while he seems to have his hair buzzed a lot, most of his projects have him sporting at least a little hair, including the G.I. Joe franchise, Foxcatcher, and Magic Mike.
John Malkovich Had Hair At The Start Of His Career

Academy Award-nominated actor John Malkovich started his career on the stage, performing in Broadway hits such as Death of a Salesman. Another thing he started off with was a full head of hair!
Even when he made his way from the stage to the silver screen, Malkovich still had hair on his head.
John Malkovich As Bald As A Queue Ball

Over 70 films later, and John Malkovich is as bald as a queue ball. The thing is, the look absolutely works for him and the various characters he played later in his career.
Some of those performances include Pope John Paul III in The New Pope and Dr. Adrian Mallory in the Netflix comedy Spaceforce.