--- title: "I Know This Much Is True: cast and crew" canonical: "https://film.one/tv/i-know-this-much-is-true/cast-and-crew" title_page: "https://film.one/tv/i-know-this-much-is-true" cast: 60 crew: 42 licence: "© Fi1m Ltd. Written by AI under a human editor; checked against sources before publication. Quote with attribution and a link to the canonical URL." --- # I Know This Much Is True (2020): cast and crew 60 cast and 42 crew, as credited (TMDB). Cast in billing order. ## Cast - [Mark Ruffalo](https://film.one/person/mark-ruffalo.md) as Dominick Birdsey / Thomas Birdsey (6 episodes) - [Melissa Leo](https://film.one/person/melissa-leo.md) as Concettina Ipolita Tempesta 'Ma' Birdsey (6 episodes) - [Rosie O'Donnell](https://film.one/person/rosie-odonnell.md) as Lisa Sheffer (6 episodes) - [Archie Panjabi](https://film.one/person/archie-panjabi.md) as Dr. Patel (6 episodes) - [Kathryn Hahn](https://film.one/person/kathryn-hahn.md) as Dessa Constantine (6 episodes) - [John Procaccino](https://film.one/person/john-procaccino.md) as Ray Birdsey (6 episodes) - [Rob Huebel](https://film.one/person/rob-huebel.md) as Leo (6 episodes) - [Michael Greyeyes](https://film.one/person/michael-greyeyes.md) as Ralph Drinkwater (6 episodes) - [Gabe Fazio](https://film.one/person/gabe-fazio.md) as Shawn Tudesco / Dominick and Thomas Acting Double (6 episodes) - [Harris Yulin](https://film.one/person/harris-yulin.md) as Father Lavie (1 episodes) - [Bruce Greenwood](https://film.one/person/bruce-greenwood.md) as Dr. Hume (2 episodes) - [Marcello Fonte](https://film.one/person/marcello-fonte.md) as Domenico Onofrio Tempesta (2 episodes) - Sue Jean Kim as Dr. Yup (1 episodes) - Michael Simon Hall as Stuart Feinstein (1 episodes) - Gina Costigan as Mrs. O'Meara (1 episodes) - Steven Cox as Boyfriend of Dr. Hume's Daughter (1 episodes) - MorningStar Angeline as Nabby Drinkwater's Wife (1 episodes) - Al Linea as Abruzzi (1 episodes) - Richard Fitch as Mill Foreman (1 episodes) - Amy Lynn Stewart as Merciful Mother (1 episodes) - Guillermo Díaz as Sergeant Mercado (1 episodes) - [Marylouise Burke](https://film.one/person/marylouise-burke.md) as Librarian (1 episodes) - Brian Goodman as Al (1 episodes) - Sandra Berrios as Social Worker at Hatch (1 episodes) - Laura Silverman as Kristin (1 episodes) - Christine Parks as Humanities Department Chair (1 episodes) - Morgan Sullivan as Office Buddy (1 episodes) - Jake Robards as Landlubbers (voice) (1 episodes) - Michael Genet as Thomas' Surgeon (1 episodes) - María Gonzalez as Ma's Oncology Nurse (1 episodes) - A.C. Peterson as Gene Diogenes (1 episodes) - Christopher J. Hanke as Thad (1 episodes) - James Quattrochi as Bus Driver (1 episodes) - Rachel B. Joyce as Jeanette (1 episodes) - Paul Coleman as Support Group Counselor (1 episodes) - [Brandon J. Dirden](https://film.one/person/brandon-j-dirden.md) as Kyle's Dad (1 episodes) - Katt Masterson as Doreen (1 episodes) - Jason Furlani as Larry Penn (1 episodes) - Annie Fitzgerald as Miss Hanker (2 episodes) - Kate Grimes as English Professor (1 episodes) - Joseph Ragno as Henrey Hood (2 episodes) - Acahkos Johnson as Penny Ann Drinkwater (2 episodes) - Jaiden Klein as Marie Sexton (2 episodes) - Charlie Reina as Channy (2 episodes) - Violet Adams as Bunny Borsa (2 episodes) - Oliver Patnode as Otero (2 episodes) - Chelsea Sheets as Brunette (1 episodes) - Matt Helm as Young Leo (2 episodes) - [Felix Solis](https://film.one/person/felix-solis.md) as Nurse (1 episodes) - Laura Esterman as Ruth Hood (3 episodes) - [Joe Grifasi](https://film.one/person/joe-grifasi.md) as Steve Falice (1 episodes) - Derek Goh as 17-19 Year Old Dominick & Thomas Acting Double (2 episodes) - Raymond Neil Hernandez as Omar (1 episodes) - Simone Coppo as Vincenzo Tempesta (1 episodes) - [Sean Cullen](https://film.one/person/sean-cullen.md) as Dr. Yates (1 episodes) - Federico Dordei as Nunzio Tucci (1 episodes) - Agatha Nowicki as Angie Constantine (2 episodes) - Rocco Masihi as Young Thomas Birdsey (4 episodes) - Irene Muscara as Prosperina Tucci (2 episodes) - Adrienne R. Williams as Mrs. Birdsall (2 episodes) ## Directing - [Derek Cianfrance](https://film.one/person/derek-cianfrance.md): Director (6 episodes) - Marisia Moreno: Second Assistant Director (1 episodes) - Dylan Hopkins: First Assistant Director (1 episodes) ## Writing - [Derek Cianfrance](https://film.one/person/derek-cianfrance.md): Writer (6 episodes) - Wally Lamb: Novel (6 episodes) - [Anya Epstein](https://film.one/person/anya-epstein.md): Writer (2 episodes) ## Production - Glen Basner: Executive Producer (6 episodes) - [Lynette Howell Taylor](https://film.one/person/lynette-howell-taylor.md): Executive Producer (6 episodes) - [Ben Browning](https://film.one/person/ben-browning.md): Executive Producer (6 episodes) - [Gregg Fienberg](https://film.one/person/gregg-fienberg.md): Executive Producer (6 episodes) - Bonnie Timmermann: Casting (6 episodes) - [Jamie Patricof](https://film.one/person/jamie-patricof.md): Co-Executive Producer (6 episodes) - [Jeffrey T. Bernstein](https://film.one/person/jeffrey-t-bernstein.md): Producer (6 episodes) - [Mark Ruffalo](https://film.one/person/mark-ruffalo.md): Executive Producer (6 episodes) - [Anya Epstein](https://film.one/person/anya-epstein.md): Executive Producer (6 episodes) - [Derek Cianfrance](https://film.one/person/derek-cianfrance.md): Executive Producer (6 episodes) - [Michael C. Bolton](https://film.one/person/michael-c-bolton.md): Co-Producer (6 episodes) - Wally Lamb: Executive Producer (6 episodes) ## Camera - [Jody Lee Lipes](https://film.one/person/jody-lee-lipes.md): Director of Photography (6 episodes) - Atsushi Nishijima: Still Photographer (6 episodes) ## Editing - [Ron Patane](https://film.one/person/ron-patane.md): Editor (6 episodes) - [Malcolm Jamieson](https://film.one/person/malcolm-jamieson.md): Editor (6 episodes) - [Jim Helton](https://film.one/person/jim-helton.md): Editor (6 episodes) - [Dean Palisch](https://film.one/person/dean-palisch.md): Editor (6 episodes) - [Nico Leunen](https://film.one/person/nico-leunen.md): Editor (6 episodes) ## Sound and music - Tony Volante: Supervising Sound Editor, Sound Re-Recording Mixer (6 episodes) - Daniel Timmons: Dialogue Editor, Supervising Sound Editor (6 episodes) - Jim Black: Music Supervisor (6 episodes) - Mariusz Glabinski: Sound Designer (6 episodes) - [Harold Budd](https://film.one/person/harold-budd.md): Original Music Composer (6 episodes) ## Art - Charles Christopher Rubino: Title Designer (6 episodes) - Nicole Montagnino: Set Decoration (6 episodes) - Alison Ford: Art Direction (6 episodes) - [Inbal Weinberg](https://film.one/person/inbal-weinberg.md): Production Design (6 episodes) - Eleonora de Simone: Assistant Art Director (6 episodes) ## Costume and make-up - Diane Calfee: Makeup Artist (6 episodes) - [Kasia Walicka Maimone](https://film.one/person/kasia-walicka-maimone.md): Costume Design (6 episodes) - Michael Zambrano: Hairstylist (6 episodes) - Leo Won: Makeup Department Head (6 episodes) - Izzi Galindo: Special Effects Makeup Artist (6 episodes) ## Crew - Kevin Michael Murphy: Stunt Double, Stunts (6 episodes) - Kevin T. Fogarty: Post Production Supervisor (6 episodes) --- © Fi1m Ltd. Written by AI under a human editor; checked against sources before publication. Quote with attribution and a link to the canonical URL. Our review: https://film.one/tv/i-know-this-much-is-true.md