Arty Tan, formerly of Ground Zero, has joined Deutsch/L.A. as a VP-associate creative director. Meanwhile, senior copywriter Martin Dix has been promoted to VP-ACD. ... Rodd Isberto, formerly a group creative director at Minneapolis agency The Foley Group, has joined Campbell-Mithun as a VP and creative director. ... Director Aaron Ruell, who played the title character's older brother "Kip" in Napoleon Dynamite
, has signed with Santa Monica production company Area 51 for video and commercials representation.