"Actor" and "Producer" are both roles that a Person can take on for a given Episode. An Actor (a Person) might play different Characters in a single Episode, and can even act and Produce.

That suggests separate tables for

• Person (person_id, person_details)
• Role (role_id, role_details)
• Episode (episode_id, episode_details)

with "linking tables"

• PersonProducesEpisode (person_id, episode_id)
• PersonPlaysRoleInEpisode (person_id, role_id, episode_id)

The "Actor" role gets collapsed into person, since it's implicit when an Person plays a Role in an Episode.

This structure give you good flexibility. It even allows for a Role (a Character) being played by multiple Persons in a single Episode, as might happen when a character ages, or if there's a flashback to the character in his/her younger days.

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