So Zack Galifianakis, Andre Holland, Rowan Blanchard (across on Disney show) and Bellamy Young were all added to the cast. Also Levi Miller from Pan will be playing Calvin and Deric McCabe is playing Charles
http://deadline.com/2016/11/a-wrinkle-in-time-zach-galifianakis-andre-holland-cast-1201846533/
I wonder if this will actually be a hit though? Disney's Live action project aren't really going well and I don't know if the book is still popular with kids today.