The role type tells you the scope of the part before you read a word of the description. These are the labels you will see most often:
- Lead
- The central character — the story follows this person throughout. Leads are at or near the top of the call sheet and typically appear in most scenes. On a feature, a lead is a significant time and material commitment.
- Supporting
- A named character who shapes the story without carrying it. Supporting roles often span multiple scenes and have a real arc, but the production centers on someone else.
- Co-Star
- A defined, named role — usually 1–3 scenes — that serves a specific narrative function. Co-star is a principal credit. On a resume it belongs in your credits; in terms of on-set commitment it is usually one or two shoot days.
- Guest Star
- A TV-specific credit that sits above co-star. It typically means a fully developed role that drives the episode in a meaningful way, even if the character does not return in future episodes.
- Day Player
- A contract term for a principal actor hired day-by-day. The role size can vary — a day player might have a single scene or might be a co-star's worth of material across one day of shooting.
- Under 5 (U/5)
- SAG-AFTRA terminology for a principal role with five lines or fewer. Still a principal credit — not background — but compensated at a specific U/5 rate.
- Background / Extra
- A non-speaking atmosphere role. Background work is valuable experience and income, but it is generally not listed as a principal credit on an acting resume. Some breakdowns will not show background at all; others post it separately from principal roles.
Why role size matters before you submit: If you are targeting principal work to build your resume, a background-only breakdown is not a fit — even if the project name is impressive. Know what you are submitting for.