I Know This Much Is True: Here’s Why In The Show, Dominick & Thomas Played By Mark Ruffalo Are Not Told About Their Biological Father Till The End

Advertisement

Mark Ruffalo starrer American TV show I Know This Much Is True finally came to an end. The finale of the show aired on HBO on Sunday and with all the exciting things, the biological father of Dominick and Thomas Birdsey was also revealed.

MAJOR SPOILERS AHEAD. 

So, in the 6th and final episode of the tragedy show, I Know This Much Is True, it’s finally revealed to the Birdsey brothers that Henry Drinkwater is their biological father. The writer and director of the show Derek Cianfrance recently opened up on why Dominick and Thomas Birdsey’s step-father, Ray Birdsey continued to keep their biological father a secret for such a long time.