<Li> Angela Bassett as Athena Grant, LAPD patrol sergeant </Li> <Li> Peter Krause as Bobby Nash, Captain, LAFD </Li> <Li> Oliver Stark as Evan "Buck" Buckley, firefighter </Li> <Li> Aisha Hinds as Henrietta "Hen" Wilson, firefighter / paramedic </Li>

Who plays buck on the tv show 9-1-1