Can you believe it's been 5 years since Karen Gillan revealed her shaved head at Comic-Con? The Scottish actress, who returns as Nebula in Avengers: Infinity War, shaved off her long red locks when she first played the Marvel villain in Guardians of the Galaxy, and spent the next couple of years giving us a lesson in how to make the most of that awkward growing-out stage. From the cute crop she sported in the early days to the ultimate mussed-up lob, Karen has spent the last few years proving there is no haircut she can't handle. Though Nebula has returned twice since the initial film, Karen decided to keep her longer locks intact and is now back to sporting those waist-length waves we fell in love with when she was Amy Pond in Doctor Who. Take a look back at her hair evolution now, then scope out her equally awesome wardrobe.
Loads of volume and a flipped-over side part made the most of Karen's rich red locks at a Doctor Who screening.
Picking up an award at the Cosmopolitan Ultimate Women of the Year Awards, Karen sported cute milkmaid braids.
A pulled-back ponytail with loose strands kept things youthful at a Doctor Who screening.
Karen sported blunt ends and even blunter bangs at the Glamour Women of the Year Awards.
Parting her bangs and keeping her lengths looking soft gave Karen's bold makeup chance to shine at a London party.
Freshly-chopped bangs framed Karen's eyes at the Scottish Fashion Awards.
Representing Doctor Who at Comic-Con, Karen kept her hair untouched and natural.
Karen shaved off every hair on her head when she took on the role of Nebula in Guardians of the Galaxy.
Karen sported a buzz cut at the Britannia Awards as her hair started growing back.
Teamed with winged eyeliner, Karen's gelled-down crop had a '60s vibe when she attended the premiere of Oculus.
Plenty of volume made the most of the short cut Karen had while promoting Guardians of the Galaxy.
By the time Guardians of the Galaxy had its premiere, Karen's hair had grown out a little more, allowing her to play with products to add volume.
A deep and defined side parting was the choice during the TCA Summer Press Tour.
By December 2014, Karen's hair had grown out into a little rounded-off bob.
Karen was finally able to tie her hair back by the time she attended the Louis Vuitton exhibition.
Karen's hair was swept back into a little updo with lots of loose waves when she attended the premiere of Cinderella.
Karen showed off a cute little bob with lots of waves when she attended the Empire Awards.
Sexy waves showed off Karen's long bob at the premiere of The Big Short.
Asymmetric angles made Karen's lob look even longer ad she attended Comic-Con.
Appearing at a press conference in London, Karen sported a deep side part and natural texture.
For the European gala screening of Guardians of the Galaxy Vol. 2, Karen wore her hair in a sexy, messy ponytail. For her second turn as Nebula, she chose to wear a bald cap, rather than shaving her hair again.
Sexy bed-head waves were the name of the game at the premiere of Guardians of the Galaxy Vol. 2.
A sleek, pushed-back style showed off the dramatic bow on Karen's outfit at the premiere of The Circle.
A straight finish showed off the longer lengths at the front of Karen's 'do as she made an appearance at SiriusXM Studios.
Straight and simple was the name of the game at the Los Angeles Film Festival.
Karen's hair had a modern bend when she attended the premiere of Spider-Man: Homecoming
Hitting the front row during Fashion Week, Karen wore her hair in voluminous waves.
At the London premiere of Jumanji, Karen's hair was worn up, with her grown-out fringe parted in the middle.
For the BAFTA awards, Karen kept her hair tightly tucked behind her ears.