しゅやく主役shuyaku
1.
The character or role that is central to the narrative, typically representing the protagonist in a film or theater production.
2.
An individual who performs the most crucial role in a performance or event, often contrasting with supporting or minor roles.
3.
A person who plays a pivotal role in a significant task or situation, highlighting their importance as a main figure in that context.
Example:
ケイトは映画で主役を演じる機会を与えられました。