Assuming you mean in a drama or comedy, a leading performer has traditionally been know as the lead, or Principal. A performer today is sometimes reffered to as the star of a performance, or as having a starring role.
Protagonist
Leading is indicating the most important performer or role. Leading is the greatest in importance or degree or significance or achievement.
A vedette is an actor or actress who is a leading star of screen, stage, or television. It is a term used to describe the main theatrical performer who knows how to dance, sing, and perform.
A Entertainor dumbo
Busker
creative...i guess..
He was talking in 1919 about the peace process and meant it was a temporary peace, leading to another war.
A compound fracture is another term for a headline fracture. It refers to a bone fracture where the broken bone pierces the skin, leading to an open wound.
Another term for a round of applause is "ovation." This is typically used to describe a loud and enthusiastic display of approval or appreciation from a group of people towards a performer or speaker.
Halle Berry won in 2001 for Monster's Ball.
the term cheerleader came from leading a cheer with the crowd
Rubato
actor, comedian, copycat, performer, imitator