kdó who; anybody, anyone
kdó drugi? who else?
kdó še? who else?
je kdó v hiši? is there anyone (ali anybody) in the house?
ne vem več, kdó vse je bil tam I don't remember everybody who was there
kdó bi si bil to mislil! who would have thought it!
malokdó hardly anyone, very few
vedeti, kdó je kdó to know who's who