"My mom had an audition for a commercial when I was about two and a half, and I ran in crying and interrupted her," Whitman explained to The Gaming Liberty of her big break. "They thought I was cute so they offered me a commercial role. My mom was skeptical and a bit nervous about the child actor thing, but I was extremely bossy and convinced them I wanted to try it.
And ever since then, I’ve just felt really at home on a set, and it feels really second nature to me to play a zillion different people within one lifetime."
Whitman isn't the only actor on NBC's heart-wrenching "Parenthood" whose performance has gotten attention from critics. Jason Ritter, who plays Sarah's (Lauren Graham) fiance Mark Cyr earned an Emmy nod.
"He's the most wonderful guy and such a wonderful actor," Graham said of Ritter on "The Tonight Show With Jay Leno." "We feel proud, as if we're a small Olympic country who got one guy who got a medal. We got our one athlete in."
Season 4 of "Parenthood" premieres on Tues., Sept. 11 at 10 p.m. ET on NBC.
RELATED ON HUFFPOST:
HuffPost Entertainment is your one-stop shop for celebrity news, hilarious late-night bits, industry and awards coverage and more — sent right to your inbox six days a week. Learn more