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Taylor Swift - Swift is stepping out of her usual stage performances to hop onto the big screen!

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Taylor Swift - The famed singer will play Bombalurina, a flirtatious feline who loves being the center of attention.

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Jennifer Hudson - You've got to have a great voice to star in 'Cats,' which makes Jennifer Hudson the perfect fit for the film.

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Jennifer Hudson - Hudson will play Grizabella, a sorrowful cat who sings the famous tune, 'Memory.'

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James Corden - James Corden broke America by hosting 'The Late Late Show.' On the show, he belts out tunes as part of 'Carpool Karaoke.'

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James Corden - Corden has been cast as Bustopher Jones, a cheerful black and white tuxedo cat.

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Idris Elba - Idris Elba is a dependable star, with a winning streak of voice acting roles.

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Idris Elba - He will appear as Macavity, a villainous ginger tabby who can dance the finest ballet.

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Judi Dench - Judi Dench is a cinematic icon, who is a welcome addition to the cast of 'Cats.'

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Judi Dench - She will star as Deuteronomy, a (traditionally) male role. Deuteronomy is a wise gray cat.

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Jason Derulo - Derulo hasn't done much acting, but remains another welcome addition to the 'Cats' cast.

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Jason Derulo - Derulo will play Rum Tum Tugger, a rebellious rock star with high energy.

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Ian McKellen - McKellen is another cinematic icon who will star in 'Cats.'

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Ian McKellen - He will play Gus the Theater Cat, an elderly feline with a long history in show business, a bit like McKellen himself!

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Rebel Wilson - The breakout star of 'Bridesmaids' and 'Pitch Perfect' will play Jennyanydots in 'Cats.'

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Rebel Wilson - The character is a friendly, motherly character, who can sometimes be a little controlling.

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Francesca Hayward - Hayward is best known for her skills as a ballet dancer for the Royal Ballet (pictured).

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Francesca Hayward - She will play Victoria, a young, elegant kitten with an inquisitive nature.

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Laurie Davidson - Known for playing Shakespeare in 'Will,' Laurie Davidson will also star in 'Cats.'

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Laurie Davidson - Laurie Davidson will be playing Mr. Mistoffelees, a lovable magician!

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Mette Towley - You may know Mette Towley from the music video for 'Lemon,' performed by N.E.R.D and Rihanna.

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Mette Towley - Towley has joined the cast as Jemima, a young and emotional cat with a spiked collar.

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Robert Fairchild - Fairchild is another ballet star who has joined the cast of 'Cats.'

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Robert Fairchild - He will play Munkustrap, a character who serves as narrator of the musical.

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Ray Winstone - You may recognize Winstone from his tough-guy roles in 'King Arthur' and 'The Departed.'

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Ray Winstone - He'll be playing Growltiger, a pirate cat! He's usually played by the same actor that plays Gus (in this case, Ian McKellen), however in the movie it will be a separate role. 

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Steven Spielberg - The production has big backing in Steven Spielberg, a Hollywood giant who is serving as executive producer.

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Steven Spielberg - Spielberg has plenty experience in the field, with recent credits on 'Ready Player One' and 'The Post.'

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Andrew Lloyd Webber - Lloyd Webber is also serving as an executive producer.

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Andrew Lloyd Webber - It makes sense, as he wrote the musical nearly 40 years ago, and has seen the production turn into an international success.

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Tom Hooper - Tom Hooper has taken on directorial duties for 'Cats.'

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Tom Hooper -

He has directed some hit films, like 'The King's Speech' and 'Les Misérables.'

See also: The best ever stage-to-screen musicals.

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