I Know This Much is True: Cast Rate: –☹️ Very Bad🙁 Bad😐 Average🙂 Good😃 Excellent🤩 Super! ★ Save Rating✔ Rating Saved! Notify me: –about new episodeabout new seasonabout end of season Subscribe✔ Subscription Saved! I Know This Much is True Drama 5/10/20 – 6/14/20 United States https://www.hbo.com/i-know-this-much-is-true GeneralEpisodesCastCharactersGallery Cast See full cast → Mark Ruffalo as Thomas Birdsey Dominick Birdsey Mark Ruffalo as Thomas Birdsey Kathryn Hahn as Dessa Constantine Rosie O'Donnell as Lisa Sheffer Imogen Poots as Joy Hanks Mark Ruffalo as Dominick Birdsey Melissa Leo as Concettina Ipolita Tempesta Birdsey Concettina Ipolita Tempesta Birdsey / Ma Archie Panjabi as Dr. Patel Juliette Lewis as Nedra Frank John Procaccino as Ray Birdsey Rob Huebel as Leo Rob Huebel as Leo Michael Greyeyes as Ralph Drinkwater Gabe Fazio as Shawn Tudesco Philip Ettinger as Young Adult Thomas Birdsey Young Adult Dominick Birdsey Philip Ettinger as Young Adult Dominick Birdsey Aisling Franciosi as Young Dessa Bruce Greenwood as Dr. Hume Marcello Fonte as Domenico Tempesta Harris Yulin as Father LaVie
