I Know This Much Is True is an American television series directed by Derek Cianfrance.
Starring Mark Ruffalo, Melissa Leo, John Procaccino, Rob Huebel, Michael Greyeyes, Gabe Fazio, Kathryn Hahn, Juliette Lewis, Rosie O'Donnell, Imogen Poots and others.

Watch the official trailer for I Know This Much Is True

HBO on Tuesday, March 31, 2020 released the trailer:
I Know This Much Is True: Official Trailer | HBO.

What is I Know This Much Is True about?

Middle-aged Dominick Birdsey (Philip Ettinger) recounts his troubled relationship with Thomas, his paranoid schizophrenic twin brother, and his efforts to get him released from an asylum.

Who's in the I Know This Much Is True cast?

Here is the full cast and characters of I Know This Much Is True.

Mark Ruffalo Dominick and Thomas Birdsey
Melissa Leo Ma Dominick and Thomas' mother
John Procaccino Ray Birdsey Dominick and Thomas' stepfather
Rob Huebel Leo Dominick's best friend
Michael Greyeyes Ralph Drinkwater a former classmate from Dominick and Thomas' youth whose life intersects once again with Dominick
Gabe Fazio Shawn Tudesco a weightlifter down at hard-bodies
Kathryn Hahn Dessa Constantine Dominick's ex-wife
Juliette Lewis Nedra Frank a self-absorbed grad student hired by Dominick
Rosie O'Donnell Lisa Sheffer a social worker for unit two at the Hatch Forensic Institute
Imogen Poots Joy Hanks Dominick's live-in girlfriend
Archie Panjabi Dr. Patel Thomas' newly appointed psychologist
Philip Ettinger 17-19-Year-Old Dominick Birdsey
Aisling Franciosi Young Dessa
Bruce Greenwood Dr. Hume
Marcello Fonte Domenico Onofrio Tempesta Dominick and Thomas' maternal grandfather from Sicily
Harris Yulin Priest
Donnie Masihi 8-Year-Old Dominick Birdsey
Rocco Masihi 8-Year-Old Thomas Birdsey
Laura Esterman Ruth Rood
Joseph Ragno Henrey Rood
Annie Fitzgerald Miss Hanker
Irene Muscara Prosperine Tucci ("The Monkey"), Ignazia's best friend and lover, loathed by Domenico Tempesta
Matt Helm Young Leo
Agatha Nowicki Angie Constantine Dessa's sister
Tatanka Means Nabby Drinkwater
Brian Goodman Al ("One")
Joe Grifasi Steve Falice ("Four")
Felix Solis Nurse ("Four")
Roberta Rigano Ignazia Tucci Tempesta (Violetta d'Annunzio), Dominick's grandmother from Pescara
Simone Coppo Vincenzo Tempesta youngest brother of Domenico Tempesta
Laura Silverman Kristin ("One")
Sue Jean Kim Dr. Yup ("Four")
Zaria Degenhardt Concettina Tempesta Dominick and Thomas' mother as a young girl ("Six")
Derek Goh 17-19-Year-Old Dominick Birdsey Acting Double
Acahkos Johnson Penny Ann Drinkwater
Vincent Reina Channy
Jaiden Klein Marie Sexton
Pete Forth Other Guard
Violet Adams Bunny
Oliver Patnode Otero
Adrienne r Williams Mrs. Birdsall
Crystal the Monkey Monkey
Squirt Monkey
Marylouise Burke Librarian
A.C. Peterson Gene Diogenes
Sean Cullen Dr. Yates
Michael Armand DeMatteo Fatso
Federico Dordei Nunzio
Shannon Plumb
James Pravasilis Third Guard
Tim Ruddy Robocop
Sandra Berrios Social Worker at Hatch
Jorge Caraballo Jerry Martineau
Michael Simon Hall Stuart Feinstein
Tonya Canady Vonette
Bethany Kay Miss Haas
Omar Pederzoli Rocco Iacco
Kayleen Rovere Funeral Director
Kate Grimes English Professor
Raymond Neil Hernandez Omar
Mariano La Manno Pedacci
Christine Parks Humanities Department Chair
Ksistsiikoma Low Horn-Wadsworth Young Henry Drinkwater
Michael Mellamphy Sgt. O'Meara
Morgan Sullivan Office Buddy
Gina Costigan Mrs. O'Meara
John Gardner Desk Officer
Samuel R. Katz Eugene Savitsky
Bodhi Okuma Linton 7-8-Year-Old Ralph Drinkwater
Chris Swain Hospital Aide
Lorenzo Cusa Marshall
James Feeney Dr. Azzi
Jake Robards Landlubbers
Destry Allyn Spielberg Dr. Hume's Daughter
Steven Cox Boyfriend of Dr. Hume's Daughter
Mark A. Gamma Mourner Mark
Michael Genet Thomas' Surgeon
Christopher J. Hanke Thad
Charlie Reina Channy
Apurv Agrawal Ma's Surgeon
MorningStar Angeline Nabby Drinkwater's Wife
Wayne J. Miller Mourner Wayne
James Quattrochi Bus Driver
Maria Gonzalez Ma's Oncology Nurse
Al Linea Abruzzi
Gianna Sarlo Girl in Yellow
Kevin Walsh Mourner Mike
Richard Fitch Mill Foreman
Miles Katz Eugene Savitsky
Michelle Majors Ray's Physical Therapist
Sarah Marcum Reyes Ma's Hospice Nurse
Scott Thomas Dale
Thomas Gionet-Lavigne Ray's Orderly
Emiliano Iagher Mill Worker
Rachel B. Joyce Jeanette
Alice Rothman-Hicks Hospice Worker
Itzel Magnolia Castellanos Exam Room Handler
Stephanie McCann Nurse's Aide
Vito J. Petroccitto Jr. Rivercrest Musician
Chelsea Sheets Brunette
Paul Coleman Support Group Counselor
Charles Jeeter Hatch Hospital Guard
Marion Parks Rivercrest Woman
Brigitte Williamson Brunette with Bangs
Ethan Crystal Thin Sailor
James Diluzio 1920s Priest
Brandon J. Dirden Kyle's Dad
Guillermo Diaz Sergeant Mercado ("One")
Kim Secord Ray's ICU Doctor
Brett Bartholomew No Neck Sailor
Katt Masterson Doreen
Sarah Oustatcher Ray's ICU Nurse
Amy Lynn Stewart Merciful Mother
Jason Furlani Larry Penn
Royce Seader Ray's Rehab Nurse
Gary James Windt Color Guard
Alexander Hacker Templeton
Kelvin Hernandez Flag Presenter
Alexander Vinogradov Angela's Funeral Priest
Necole Milone Well Wisher
Robert Mladinich Paddy Wagon Officer
Peter Weiss John Wayne
James Vertucci Paddy Wagon Driver
Thomas Catizone Insane Asylum Physician
Mitchell Kolvenbach Insane Asylum Attendant

What are I Know This Much Is True series specifications?

The I Know This Much Is True series is produced by Willi Hill and FilmNation Entertainment.

The average duration of each episode is 59 - 80 minutes. Country of origin: United States. Original language: English and Sicilian.

More information about I Know This Much Is True you can get at:

Official website: hbo.com/i-know-this-much-is-true

IMDB: I Know This Much Is True

Wikipedia: I Know This Much Is True (miniseries)

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