1.
role; character; part (in a play, film, etc.)
The nature or type of a role played by an actor. Refers not just to the role itself but to its character and qualities.
難しい役柄に挑戦する。
I take on a difficult role.
彼女はその役柄にぴったりだった。
She was a perfect fit for the role.
悪役の役柄を演じるために体重を増やした。
He gained weight to play the villain's part.
2.
nature of one's position; role one is expected to fill
By extension, the duties or behavior expected of someone given their position or status.
リーダーという役柄上、厳しいことも言わなければならない。
Given the nature of my role as leader, I have to say tough things too.
司会者の役柄として場を盛り上げた。
In his role as host, he livened up the event.
役柄上、個人的な意見は控えさせていただきます。
Given the nature of my position, I will refrain from expressing personal opinions.
役柄 refers to the nature or character of a role, not just the role itself. It emphasizes what kind of role it is.
COMPOUND:
役 (role) + 柄 (nature, character, pattern). The suffix ～柄 adds the sense of inherent nature or quality.
SIMILAR WORDS:
- 役: the role itself (what part you play)
- 役柄: the nature/character of the role (what kind of part it is)
- 役割: role, function (broader, used for social/organizational roles)
COMMON PATTERNS:
- 難しい役柄: a difficult role
- 明るい役柄: a cheerful role
- 役柄にぴったり: a perfect fit for the role
- 役柄上: by virtue of one's role/position
NOTE:
役柄上 (sense 2) is a set expression meaning "given the nature of one's position" — used to explain behavior required by a role.