Who is he?
He's my father. / He is my father.
Who is he?
He's my grandpa. / He is my grandpa.
Who is she?
She's my sister. / She is my sister.
Who is she?
She's my friend. / She is my friend.
Who is he?
He's my brother. / He is my brother.
Who is she?
She's my mother. / She is my mother.
Who is she?
She's my grandma. / She is my grandma.