ieg ler , ▁ ▁music ▁and ▁dance ▁artist ▁Jason ▁Der ulo , ▁ch ore ograph er ▁and ▁tv ▁person ality ▁Laur ie ann ▁Gib son , ▁and ▁successful ▁show ▁al umn i ▁Stephen ▁" t W itch " ▁B oss ▁and ▁Domin ic ▁" D - T rix " ▁Sand oval . ▁ ▁Many ▁earlier ▁seasons ▁frequently ▁featured ▁guest ▁jud ges ▁in ▁occas ional ▁episodes , ▁though ▁this ▁practice ▁has ▁become ▁increasing ly ▁rare . ▁ ▁These ▁guest ▁judge ▁positions ▁have ▁typically ▁been ▁filled ▁by ▁ch ore ograph ers ▁who ▁work ▁regularly ▁on ▁the ▁show ▁( who ▁in ▁rare ▁cases ▁may ▁also ▁be ▁former ▁contest ants ▁themselves ) ▁and ▁by ▁icon ic ▁names ▁from ▁the ▁entertain ment ▁industry . ▁Gu est ▁jud ges ▁for ▁the ▁show ▁have ▁included : ▁Deb bie ▁Allen , ▁Christ ina ▁App legate , ▁Robin ▁Ant in , ▁T oni ▁Bas il , ▁Cic ely ▁Brad ley , ▁Krist in ▁Chen ow eth , ▁M ist y ▁Cop eland , ▁Alex ▁Da ▁Silva , ▁Ellen ▁De Gener es , ▁Ty ce ▁D ior io , ▁Jo ey ▁Dow ling , ▁Napoleon ▁and ▁Tab ith a ▁D ' um o , ▁Car men ▁Elect ra , ▁Brian ▁Fried man , ▁Jean - M arc ▁Gén ére ux , ▁Jason ▁Gil k ison , ▁Neil ▁Patrick ▁Harris , ▁Hi - H at , ▁K atie ▁Hol mes , ▁Dan ▁Kar aty , ▁Lady ▁G aga , ▁Car ly ▁R ae ▁Je ps en , ▁Lil ' ▁C , ▁Rob ▁Marshall ,