James Franco Jake Epping Actor Chris Cooper Al Templeton Actor Sarah Gadon Sadie Dunhill Actor Daniel Webber Lee Harvey Oswald Actor George MacKay Bill Turcotte Actor Josh Duhamel Frank Dunning Actor T.R. Knight Johnny Clayton Actor Lucy Fry Marina Oswald Actor Kevin J. O'Connor Yellow Card Man Actor Cherry Jones Marquerite Oswald Actor Stephen King Executive Producer J.J. Abrams Executive Producer Bridget Carpenter Executive Producer Bryan Burk Executive Producer