Question: Who wrote the novel that became the source material for this musical in which the American stage actor Matt Harrington played Mr. Wormwood?
Sentence (from "Matt Harrington (actor)"): Matt Harrington is an American stage actor, best known for his work in the Broadway production of Matilda the Musical, in which he replaced Tony Award winner Gabriel Ebert in the role of Mr. Wormwood.
Relevant evidence: Yes