Director Ron Howard continues to bring fans behind the scenes of the untitled Han Solo movie via his Twitter, today using it to confirm that actor Paul Bettany has joined the cast.
— Ron Howard (@RealRonHoward) September 1, 2017
Williams was playing a "half-human, half-animal in the film" which, if it is indeed the same role, sounds right for Bettany. He, of course, is well-known these days for playing the equally confused Vision in the Marvel Cinematic Universe.
The, yes, still untitled Han Solo movie opens in the US 25 May 2018.