Which is the correct question form, please?
Who is he?
Or / Who is him?
Are both correct?
Not a teacher.
“Who is he?” is correct.
‘Who is him?’ is not correct in standard grammatical English.
Who is “him”? would be acceptable if you were asking who a person was referring to when they used the pronoun ‘him’. (A shorter, informal version of 'Who do you mean by “him”?)
Thanks I understand now.