Second assistant director

/sˈɛkənd ɐsˈɪstənt daɪɹˈɛktə/

/sˈɛkənd ɐsˈɪstənt dɚɹˈɛktɚ/

someone who is responsible for assisting the first assistant director with tasks related to organizing the set, creating call sheets, coordinating extras, and ensuring the safety of the cast and crew.