debutant

noun

1. a person who makes a debut into a professional career or before the public.

noun

1. a person who is making a first appearance in a particular capacity, such as a sportsperson playing in a first game for a team

n.

1824, “male performer or speaker making his first public appearance,” from French, noun use of present participle of débuter “to make the first strike” (in billiards, etc.), from debut (see debut).