Traditional sports broadcasting splits commentary into two distinct roles for a reason: a play-by-play announcer describes what's happening in real time, fast enough to keep pace with the action, while a color commentator, usually a former player or coach, explains why it matters — the strategy behind a decision, the significance of a particular play. Esports broadcasting borrows that same two-role split almost directly, usually called the "caster" and the "analyst" or "desk" role.

The caster's job is harder than it looks specifically because esports moves faster, and often less visibly to an untrained eye, than most traditional sports — a caster has to track multiple players' positions, resources, and decisions across an entire map or arena at once, and narrate it clearly enough that a viewer who isn't tracking all of that themselves can still follow what's happening and why it's exciting. The analyst's job leans on deep game-specific expertise, usually built from having actually competed at a high level, to explain the strategic layer underneath the caster's play-by-play: why a team made a particular call, what a subtle positioning choice actually accomplishes, what to watch for next.

Neither role happens live without extensive preparation most viewers never see directly: casters and analysts study team scrim results, patch notes, and recent match history before an event, the same way a traditional sports broadcast team studies game film and player statistics beforehand. A production crew sits behind both roles, choosing which player's point of view the broadcast shows at any given moment — a decision, called observing, that shapes what the audience can even see happening as much as anything the casters say about it.

Between games, most esports broadcasts add a third layer entirely absent from traditional sports commentary: a desk segment, hosted separately from the live casting booth, that interviews players, breaks down results, and previews what's coming next — filling the same role a studio pre-game and halftime show plays in traditional sports broadcasting, just built specifically around a competitive scene where the audience often needs more context to follow along than a traditional sport's viewers do.