I Know This Much Is True

1 Season|6 Episodes

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Based on the bestselling novel by Wally Lamb, written and directed by Derek Cianfrance, and starring Mark Ruffalo, this limited series follows Dominick Birdsey as he struggles to care for his twin brother, Thomas, while discovering the truth about his own family history.

Cast & Bios

Dominick Birdsey
Mark Ruffalo
Thomas Birdsey
Mark Ruffalo
Ma (Concettina Ipolita Tempesta Birdsey)
Melissa Leo
Lisa Sheffer
Rosie O'Donnell
Dr. Patel
Archie Panjabi
Joy Hanks
Imogen Poots
Nedra Frank
Juliette Lewis
Dessa Constantine
Kathryn Hahn
Ray Birdsey
John Procaccino
Rob Huebel
Ralph Drinkwater
Michael Greyeyes
Dessa Constantine - Young
Aisling Franciosi
Domenico Onofrio Tempesta
Marcello Fonte
Dominick & Thomas - Young adult
Philip Ettinger
Dr. Hume
Bruce Greenwood