i think obito only
itachi:his yata can't counter kamui ,kamui isn't somatic attack soyat can't counter kamui
minato and so fast people(A,naruto):kakashi's kamui is so fast he warped naruto without obito who has sharingan note so i think his kamui is above the reaction i mean kakashi can warp minato or his neck without minato feel to use his ftg and naruto/A as him
sasuke can counter it with amtrasu as if kakashi started warping him he won't feel to use his amatrasu and whatever kakashi can warp amtrasu too
madara with ps:kakashi can warp only sausano's head or the part where madar stay, kakashi doesn't need to warp all susano