Definitions & Industry Terms

What is a deuteragonist?

By the WriteLoom editorial teamUpdated 2026-06-07
Key facts
  • A deuteragonist is the second most important character.
  • They rank just below the protagonist in significance.
  • Common roles: close ally, love interest, rival, or co-lead.
  • They often have their own arc and substantial presence.
  • The term comes from ancient Greek drama.
Direct answer

A deuteragonist is the second most important character in a story, ranking just below the protagonist. The term comes from ancient Greek drama (where it meant the second actor). A deuteragonist often serves as a close ally, love interest, rival, or co-lead, with substantial presence and frequently their own arc. They support and play off the protagonist, sometimes nearly sharing the spotlight. Understanding the role clarifies the hierarchy of characters and helps writers develop a strong secondary lead.

Chapter i·Why it matters

Knowing the term deuteragonist helps writers think clearly about character hierarchy and the important second lead a story often needs. The deuteragonist is frequently where much of a story's relationship dynamics and secondary arc live, so developing them well matters. Understanding this role — distinct from minor characters and from the antagonist — helps writers build a supporting lead with enough depth and presence to enrich the protagonist's story.

Chapter ii·What to include

  • The second most important character.
  • A rank just below the protagonist.
  • Roles: ally, love interest, rival, co-lead.
  • Their own arc and substantial presence.
  • The Greek-drama origin.
  • A distinction from minor characters and the antagonist.

Chapter iii·Example

In a buddy adventure, the protagonist's loyal best friend — present throughout, with his own arc and nearly co-leading the story — is the deuteragonist. He is the second most important character, supporting and playing off the protagonist. Recognizing the role, the writer gives him the depth a strong secondary lead deserves.

In WriteLoom

WriteLoom's Plan studio tracks your supporting leads, so a deuteragonist gets the depth they deserve.

See the Plan studio