walk-on ,
walk-on part ,
walk-on role

But to be given mere walk-on parts - no lines, no dialogue - doesn't feel like mature mindedness.

Local celebrities take small walk-on parts.

Even animals, performing animals with walk-on parts, are capable of stealing the show.

And just use the serious historical figures for walk-on parts.

Every last role in this complex and crowded story is well played; even the walk-on parts, the police detectives and office workers, become memorable.

He assisted with props and performed occasional walk-on parts at the Abbey until 1916.

Many consigned me to a brief walk-on part in John's life, notable only because we had a son.

And there are the victories in which I had only a ghostly walk-on part.

There is even an amateur ham, like me, yearning to perform one-line walk-on parts in the theater.

A party that produced in the past lead actors has been reduced to the role of an agency that provides reliable walk-on parts.