他在人群场景中担任临时演员。

He was an ___extra in the crowd scene.

电影制作方雇用了许多临时演员来拍摄大规模的战斗场面。

The film production hired many ___extras for the massive battle sequence.

她以在一部历史剧中担任临时演员开始了她的演艺生涯。

She started her acting career as an ___extra in a historical drama.