Dev Patel
In 2015 , Patel starred as the mathematician Srinivasa Ramanujan in the biopic "The Man Who Knew Infinity" , and the following year he played Saroo Brierley in the drama "Lion" ( 2016 ) . 
<triplet> The Man Who Knew Infinity <subj> Srinivasa Ramanujan <obj> main subject <triplet> Lion <subj> Saroo Brierley <obj> main subject