キット・ハリントン
The film was produced by Bonnie Arnold, and exec-produced by Dean DeBlois and Chris Sanders. Jay Baruchel, Gerard Butlers, Cate Blanchett, Craig Ferguson, American Ferrera, Jonah Hill, Christopher Mintz-Plasse, Kit Harington, and Kristen Wiig reprised their roles from previous films. F. Murray Abraham joined the cast as the film's main villain, Grimmel.