Nearly a decade before she won us over as Callie Torres on Grey's Anatomy, Sara Ramirez was just another aspiring actress in the Big Apple, honing her skills at The Juilliard School. While there, however, she met and "intimidated" another actress who would later play a major part in Grey's Anatomy. We'll give you a hint — this thespian played a character who went by two names. Give up? Click through for the reveal!