All terms
Glossary

Principal

Also called principal performer, principal artist

A principal is a performer in a main or speaking role, as opposed to background artists and extras.

On US union productions it is also a contract category for speaking performers.

In use

Principals to set, please.

UK and US usage

In the UK, principal is used loosely for the leading or speaking cast on set. In the US, it is also a formal union category (principal performer) that carries its own contract terms.

Last updated 4 Oct 2026

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