. . "Brown"@en . . . "Unknown"@en . "Eric Mendenhall is an actor who portrayed Billy in Season 4 of AMC's The Walking Dead."@en . "Actor"@en . "Eric Mendenhall"@en . . "Unknown"@en . . . "Caucasian"@en . . "Eric Mendenhall is an actor who portrayed Billy in Season 4 of AMC's The Walking Dead."@en . "Eric Mendenhall"@en . "Male"@en .