Discover
Original Release
05/10/2020
US Release
05/10/2020
Cast
| Name | Character |
|---|
| John Procaccino | Ray Birdsey |
| Rob Huebel | Leo |
| Mark Ruffalo | Dominick Birdsey / Thomas Birdsey |
| Kathryn Hahn | Dessa Constantine |
| Gabe Fazio | Shawn Tudesco / Dominick Birdsey / Thomas Birsdey Acting Double |
| Melissa Leo | Ma |
| Rosie O'Donnell | Lisa Sheffer |
| Rocco Masihi | 8-Year-Old Thomas Birdsey |
| Michael Greyeyes | Ralph Drinkwater |
| Archie Panjabi | Dr. Patel |
Directors
Writers
Wally Lamb, Derek Cianfrance, Anya Epstein
Cast
| Name | Character |
|---|
| John Procaccino | Ray Birdsey |
| Rob Huebel | Leo |
| Mark Ruffalo | Dominick Birdsey / Thomas Birdsey |
| Kathryn Hahn | Dessa Constantine |
| Gabe Fazio | Shawn Tudesco / Dominick Birdsey / Thomas Birsdey Acting Double |
| Melissa Leo | Ma |
| Rosie O'Donnell | Lisa Sheffer |
| Rocco Masihi | 8-Year-Old Thomas Birdsey |
| Michael Greyeyes | Ralph Drinkwater |
| Archie Panjabi | Dr. Patel |
| Donnie Masihi | 8-Year-Old Dominick Birdsey |
| Imogen Poots | Joy Hanks |
| Laura Esterman | Ruth Rood / Mrs. Rood |
| Oliver Patnode | Otero |
| Jaiden Klein | Marie Sexton |
| Matt Helm | Young Leo |
| Irene Muscara | Prosperina |
| Marcello Fonte | Domenico Tempesta |
| Acahkos Johnson | Penny Ann Drinkwater |
| Derek Goh | 17-19-Year Old Dominick & Thomas Acting Double |
Producers
| Name | Role |
|---|
| Peter Kang | Executive Producer |
| Wally Lamb | Executive Producer |
| Glen Basner | Executive Producer |
| Lynette Howell Taylor | Executive Producer |
| Anya Epstein | Executive Producer |
| Ben Browning | Executive Producer |
| Jamie Patricof | Executive Producer |
| Gregg Fienberg | Executive Producer |
| Derek Cianfrance | Executive Producer |
| Mark Ruffalo | Executive Producer |
| Michael C. Bolton | Producer |
| Judith Regan | Producer |
| Jeffrey T. Bernstein | Producer |
Editors
Jim Helton, Ron Patane, Malcolm Jamieson, Dean Palisch, Nico Leunen
Trailers
I Know This Much Is True: Season 1
Clips
I Know This Much Is True: Dominick And Thomas Reunite
