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Rupert Grint and Tom Felton -

Actors Rupert Grint and Tom Felton have been friends just as long as their 'Harry Potter' characters Ron Weasley and Draco Malfoy have been enemies.

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Tom Felton and Rupert Grint -

The two have been seen partying together in Las Vegas and even wearing clothes to honor each other. At the premiere of 'Rise of the Planet of the Apes,' Grint wore an 'I [heart] Tom Felton' shirt.

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Bryan Cranston and Giancarlo Esposito -

On ABC's hit drama 'Breaking Bad,' Bryan Cranston and Giancarlo Esposito played rivals Walter White and Gus Fring. In reality, however, the pair seem to be friendly.

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Bryan Cranston and Giancarlo Esposito -

The pair obviously share a sense of humor: in 2013 when Esposito won an award, Cranston delivered him a heartfelt congratulatory speech while sitting on the toilet.

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Angela Kinsey and Jenna Fischer -

Angela Kinsey's and Jenna Fischer's characters on the 'The Office' certainly don't see eye to eye, but that doesn't stop the actresses from being the best of friends.

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Angela Kinsey and Jenna Fischer -

Apparently off-screen Kinsey and Fischer are great friends and spend a lot of time together. They even co-host the podcast 'Office Ladies' as a duo.

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Daisy Ridley and Adam Driver -

Daisy Ridley and Adam Driver may portray the opposing sides of The Force in the 'Star Wars' films, but the actors are actually the best of friends.

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Daisy Ridley and Adam Driver -

In 2017 the pair interviewed each other for V Magazine. Ridley said, "We became besties last year," and Driver added that becoming friends with her was his favorite part of the filming process.

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Michael B. Jordan and Lupita Nyong’o -

In the 2018 movie 'Black Panther' Lupita Nyong'o's character Nakia is determined to take down Michael B. Jordan's character Erik Killmonger. 

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Michael B. Jordan and Lupita Nyong’o -

In real life, however, the two are all about building each other up. They regularly make sweet social media posts for one another and have even been seen traveling together.

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Andrew Scott and Benedict Cumberbatch -

In the BBC drama 'Sherlock,' Benedict Cumberbatch plays the detective Sherlock Holmes and Andrew Scott plays his nemesis, James Moriarty.

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Andrew Scott and Benedict Cumberbatch -

The rivalry doesn't continue off-screen, however, and in reality, the actors are friends. Scott even attended Cumberbatch's wedding to Sophie Hunter in 2015.

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Vanessa Hudgens and Ashley Tisdale -

Vanessa Hudgens and Ashley Tisdale may have played archenemies Gabriella and Sharpay in the Disney franchise 'High School Musical,' but in real life they are best buds.

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Vanessa Hudgens and Ashley Tisdale -

In August 2019 Tisdale said of Hudgens: "We just have a connection and she's so awesome and one of my best friends." The two often feature on each other's Instagram.

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KJ Apa and Charles Melton -

Even though Archie Andrews and Reggie Mantle are rivals in 'Riverdale,' the actors who play them, KJ Apa and Charles Melton, are actually close friends.

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KJ Apa and Charles Melton -

Their friendship is obvious to anyone who follows either of them on social media, since they often post photos of each other and crack jokes.

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Patrick Stewart and Ian McKellen -

British actors Patrick Stewart and Ian McKellen have actually known each other since the 1970s, but appeared to become close friends during the filming of the 2000s 'X-Men' movies.

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Patrick Stewart and Ian McKellen -

The pair play archenemies in 'X-Men' but they have a friendship that is all over social media. McKellen even officiated Stewart's wedding in 2013.

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Chris Hemsworth and Tom Hiddleston -

In the 'Thor' movies Chris Hemsworth and Tom Hiddleston play brothers and enemies, Loki and Thor, but the actors actually have a relationship that Hiddleston himself has described as a "bromance."

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Chris Hemsworth and Tom Hiddleston -

In a 2011 interview with Collider, Hemsworth described how it was easy for him to work with Hiddleston because of their off-screen chemistry.

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Madelaine Petsch and Lili Reinhart -

'Riverdale' characters Cheryl Blossom and Betty Cooper may butt heads, but the actresses who play them, Madelaine Petsch and Lili Reinhart, are two peas in a pod.

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Madelaine Petsch and Lili Reinhart -

In a 2018 interview with Glamour Petsch said of Reinhart, "We can talk about my relationships or personal lives or whatever and I feel like she's always got my back."

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Lena Headey and Peter Dinklage -

In 'Game of Thrones,' siblings Cersei and Tyrion Lannister may try to kill each other, but in real life Lena Headey and Peter Dinklage are really close friends.

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Lena Headey and Peter Dinklage -

The pair have often been pictured laughing and joking together and reportedly even lived together while 'Game of Thrones' was being filmed.

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Kate Winslet and Shailene Woodley -

'Divergent' characters Tris Prior and Jeanine Matthews don't exactly get along, but their actresses Kate Winslet and Shailene Woodley sure do.

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Kate Winslet and Shailene Woodley -

Woodley has described Winslet as a sister and even once said, "One of the greatest gifts I've had in my life is to receive the sisterhood of Kate."

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Tom Cavanagh and Grant Gustin -

In 'The Flash,' characters Barry Allen and Dr. Harrison Wells aren't the best of friends, but in real life Tom Cavanagh and Grant Gustin appear to be pretty close.

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Tom Cavanagh and Grant Gustin -

They have often been seen joking around on set and apparently work together on side projects when they both have some time to spare.

Sources: (Insider) (The Things)

See also: Actors reveal their best and worst on-screen kisses

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