For Hitman: Agent 47, Rupert Friend shaved his head to play the titular assassin. This puts him in a very special club: true cinematic heroes who dared to sacrifice their locks for a part.

Sigourney Weaver in 'Alien 3' (1992)

Weaver reportedly demanded big bucks to get rid of her hair for round three with the xenomorphs, but it was worth every penny. It’s become one of her most iconic looks.

Christian Bale in ‘American Hustle’ (2013)

How do you play a bald con artist with a terrible toupee? If you're the always dedicated Christian Bale, you shave it all off and let the makeup department take care of the rest.

Marlon Brando in ‘Apocalypse Now’ (1979)

Marlon Brando showed up on the set of Apocalypse Now grossly overweight, forcing director Francis Ford Coppola to shoot around his girth. The result: a focus on his shiny dome, which gives his psychotic colonel real menace.

Tom Hardy in ‘The Dark Knight Rises’ (2012)

Tom Hardy underwent a massive physical transformation to portray one of Batman's greatest nemeses. Shaving his head must have been a walk in the park after all of the hours in the gym.

Matt Damon in ‘Elysium’ (2013)

Sure, that shaved head makes Matt Damon look more like the futuristic criminal he's playing, but it also better shows off the advanced exoskeleton that gets drilled into his cranium. Ouch.

Demi Moore in ‘G.I. Jane’ (1997)

You can't help but seem tough with a shaved head, but Demi Moore somehow looks like she could kick everyone's ass with her hair gone. Try to keep her out of the military at your own peril!

Karen Gillan in ‘Guardians of the Galaxy’ (2014)

Karen Gillan could have worn a bald cap to play the deadly, blue-skinned Nebula, but proved her commitment to the role by unveiling her freshly shaven head at Comic-Con a year before Guardians of the Galaxy hit theaters.

Cate Blanchett in ‘Heaven’ (2002)

Cate Blanchett may be famous for her gorgeous blonde hair, but she's more famous for being an incredible actress who is willing to take risks. So when a story demands for her hair to go, it goes!

Timothy Olyphant in ‘Hitman’ (2007)

Long before the new Hitman movie was in the pipeline, Timothy Olyphant took a stab at playing Agent 47. With his shiny chrome dome and menacing scowl, he was the spitting image of his video game counterpart.

Jeff Bridges in ‘Iron Man’ (2008)

Long before Obadiah Stane reveals himself to be Tony Stark's first major villain, we know he's up to something because of that shaved head. Plus, few actors can rock the bald-and-beard look quite like Jeff Bridges.

Charlize Theron in ‘Mad Max: Fury Road’ (2015)

Imperator Furiosa is one of the greatest heroines in modern action cinema. Charlize Theron provides the humanity with her layered performance. Her shaved head provides that instant aura of toughness.

Tom Cruise in ‘Minority Report’ (2002)

Tom Cruise is only bald for the final scenes of Minority Report, but rather than go with makeup effects, the biggest movie star in the world decided to go for the real deal. Now that's commitment!

Kevin Spacey in ‘Superman Returns’ (2006)

The great Gene Hackman infamously refused to shave his head in the original Superman movie, so Kevin Spacey one-ups him with his hairless take on Lex Luthor. The result: he’s the spitting image of Superman's arch nemesis.

Bruce Willis in ‘Unbreakable’ (2000)

Over a decade before Unbreakable, Willis was rocking his receding hairline and starring in major movies. But then he shaved the rest of it off and achieved his ultimate form.