walk-on
1. [ adjective ] not capable of or especially not involving speech or spoken lines
Synonyms: nonspeaking
Examples:

"had a nonspeaking role in the play"

Related terms: speaking mute
2. [ noun ] (theater,performing arts) plays a small part in a dramatic production
Related terms: actor
Similar spelling:   walk-in
  Walken
  Walson
  Walkins
  walking
  walk_in