Tim Allen has revealed that Keanu Reeves plays a role in Toy Story 4 – but we don’t know much about it besides the fact that he was originally too similar to Buzz Lightyear.

Speaking on The Tonight Show, the Buzz Lightyear actor said Pixar “will surprise you with the toys they came up with. Characters came back, new guys in it that are great. Keanu Reeves has got a great part.”

“Actually, a little inside story. Even [Reeves] said, gentle, wonderful guy that he is, ‘This sounds too much like Buzz Lightyear.’ And his character does have an edge to that. And the guy said, ‘So we calmed him down a little bit,’.”

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It’s not clear exactly who the Matrix and John Wick actor will be playing, but Allen indicated that he’d be playing a particularly small toy – around the size of the toy soldiers already in the film.

Reeves isn’t the first surprise star addition to the cast. Tony Hale was revealed as Forky in the film’s first teaser, before a second trailer showed off comedians Key & Peele as Ducky & Bunny..

There’s lots of time for more surprises – Toy Story 4 is due for release on June 21, 2019.

Joe Skrebels is IGN’s UK News Editor, and he hopes Keanu is playing one of those little giraffes that falls down if you press a button. Follow him on Twitter.