I'm the one who … him/her
I was the one who asked him.
I gave it to him.
C'est moi qui lui ai demandé de venir.
I was the one who asked him to come.
C'est moi qui lui ai mis les serviettes.
I was the one who put the towels on him.
— Parle avec elle (2002)
C'est moi qui lui ai appris ça.
I taught him that.
I was the one who spoke to him.
I told him.
C'est moi qui lui ai donné, Baba.
I'm the one who gave it to him, Baba.
— Rise Roar Revolt (RRR) (2022)
C'est moi qui lui ai enlevé le cœur.
I'm the one who took his heart away.
— The Man From Nowhere (2010)