Jim Parsons, who plays quirky genius Sheldon Cooper on the CBS comedy "The Big Bang Theory," can draw many distinctions between himself and young Iain Armitage, who plays his character as a child on CBS' new spin-off, "Young Sheldon." Parsons finds Iain much more "in control as a human being" and more mature than he was at age 9. Hearing Parsons during a TV critics conference on Tuesday, Iain thanked him but graciously replied, "I don't think so." Laughing, Parsons noted that Iain hadn't known him back then. They have much more in common these days, insisted Parsons, than they ever would have had when he was a youngster. Parsons as adult Sheldon narrates "Young Sheldon," which premieres Sept. 25. He continues on "The Big Bang Theory," beginning Season 11.
