Supporting players and Supernumerary

Supporting players noun - A cast other than the principals.

Supernumerary and supporting players are semantically related. in supporting actor or actress topic. In some cases you can use "Supernumerary" instead a noun phrase "Supporting players".

Supernumerary noun - A person in excess of the regular, required, or usual number.

Supporting players and supernumerary are semantically related. Sometimes you can replace phrase "Supporting players" with "Supernumerary", this terms are similar.