<Li> Patrick Fabian as Howard Hamlin, a name partner at Hamlin, Hamlin & McGill and Jimmy's former nemesis . </Li> <Li> Michael Mando as Ignacio "Nacho" Varga, an upholstery shop worker who is also an intelligent, ambitious member of Tuco Salamanca's gang . </Li> <Li> Michael McKean as Charles L. "Chuck" McGill, Jr., Jimmy's elder brother and a named partner at HHM who is confined to his home by electromagnetic hypersensitivity . </Li> <Li> Giancarlo Esposito as Gus Fring, a methamphetamine distributor who uses his fast food restaurant chain Los Pollos Hermanos as a front (season 3). </Li>

Who plays jimmy's brother in better call saul