<Li> Gerald McRaney as Dr. Nathan Katowski ( aka `` Dr. K '' ) : The obstetrician who delivered Kate and Kevin . </Li>
<Li> Gerald McRaney as Dr. Nathan Katowski ( aka `` Dr. K '' ) : The obstetrician who delivered Kate and Kevin . </Li>
who plays dr. k in this is us
who plays dr. k in this is us
Gerald McRaney
Gerald McRaney