Who
pronoun, の adjective
The kanji and the word are exactly the same. That means they share meanings as well.
The reading is the same as the one you learned with the kanji.
あの人、誰かな？
Who is that person?
次は誰の番？
Whose turn is it next?
え、それ、誰が言ったの？
Oh, who said that?
「彼女は誰かしら。」「名前を知らないの？クラスであなたの後ろに座っているよ！」
"I wonder who that girl is." "You don’t know her name? She sits behind you in class!"