'Albatross' is an important character of-

• The Rime of the Ancient Mariner is a famous poem of Samuel Taylor Coleridge.
• The important character of this poem:
- The Mariner,
- Wedding Guest,
- Albatross (A bird),
- The Nightmare,
- Life in Death.
Source: The Rime of the Ancient Mariner, Website Lecture and Encyclopedia of Britannica.