No, it wouldn't work in that situation. You would say, "Who are they?" The word "whose" is a possessive pronoun, like "my" or "your." If you wanted to ask who owned some items (plural), for example some books or shoes, you could ask, "Whose are these/those?"

We don't tend to use the standalone pronouns 'these' and 'those' for human beings: we say "What are those?" for objects, but not "Who are those?" for people. In that context, you'd either say "Who are those people?", "Who are these people?" or "Who are they?".