It was first revealed that Lynch will portray Miss Honey in the film, followed by the 15 Jan. confirmation that Thompson will play formidable headteacher Miss Trunchbull.
Academy Award winner Ralph Fiennes was originally in talks for the part, as the character of Trunchbull is actually played by a man in theater productions of "Matilda the Musical." However, Netflix's movie musical landed on Thompson for the role. "We haven't had to build the appearance of Trunchbull as a woman before!" director Matthew Warchus told the Daily Mail.
"Matilda the Musical" also stars Weir as Matilda Wormwood. Andrea Riseborough and Stephen Graham will play Mrs. and Mr. Wormwood, respectively.