Young Sheldon Iain Armitage. Iain plays Sheldon on Young Sheldon and Ziggy on Big Little Lies - he also loves theatre! Iain Armitage: I love that he's smart, obviously.
CBS aired a preview of "Young Sheldon" Monday night. Iain Armitage: Not exactly a buddy. Like his character, child actor Iain Armitage is nine years old; unlike young Sheldon, he's not quite up to starting high school.
He may be young, but he has a gift.
Just past the swing set and plastic slide at Beeman Park in Los Angeles' Studio.
Iain Armitage is the star of The Big Bang Theory prequel Young Sheldon. Jane Fonda is back at it again, protesting on the steps of Capitol Hill against climate change as part of her Fire Drill Fridays, and this time she has Iain Armitage by her side. But who are Iain Armitage's real parents?