The roles of “agent” and “manager” are often treated as interchangeable words for “person who helps my career.” They overlap, but they’re not the same job.
Agents primarily procure work. They submit, negotiate and aim to land you auditions and bookings. They usually have larger rosters and more specific lanes (theatrical, commercial, voice-over, etc.). Agents tend to be more selective about clients who are “ready to go” right now.
Managers often focus more on long-term development and career strategy. They might help you choose classes, shape your branding, build materials, and position you for the right casting offices. Managers can submit you, too.