Nikki Blonsky
Her first role ever is in Hairspray she played 'Tracy Turnbald' the main character who is a slightly overweight teen to dreams to become a star and she ends up charming everyone and landing her dream guy.
She was amazing as Tracy, she is so talented! and quite funny.
Her and Link(Zac Efron) had the best chemistry!
They are best friends in real life, and there are rumors that they are dating.
btw, no need to say she's fat. She knows, We know...get over it.