protagonist
🇺🇸
/prəˈtæɡənɪst/
🇬🇧
/prəˈtæɡənɪst/
the main character in a story, movie, or play
The protagonist of the story is a brave young woman who saves her village.
one of the main people in a real event or conflict
She was a key protagonist in the peace talks between the two countries.
a strong supporter of a cause or movement
He became a leading protagonist for environmental protection in his community.