▁Rob o . ▁ ▁Re inc arn ated ▁in ▁the ▁O V As ▁as ▁S ara ▁Yam ada . ▁ ▁Villa ins ▁ ▁G ad ess ▁( play ed ▁by ▁Sh ige z ō ▁S asa oka ) ▁Le ader ▁of ▁the ▁Gy and lar . ▁Gru j ios ▁( play ed ▁by ▁Minor u ▁In aba ) ▁A ▁giant ▁p ink ▁sl ug ▁that ▁lives ▁enc ased ▁in ▁a ▁robot ▁body . ▁D ion dra ▁( play ed ▁by ▁H iro ko ▁Tak ah ashi ) ▁Fem ale ▁Gy and lar ▁commander . ▁Gar udi ▁( play ed ▁by ▁Y ō su ke ▁Ak im oto ▁[ ev il ], ▁Show ▁Hay ami ▁[ good ]) ▁Gy and lar ▁mart ial ▁artist . ▁Under ne ath ▁his ▁giant ▁robot ▁exterior ▁is ▁Rom ' s ▁long - lost ▁older ▁brother , ▁Guard i ▁St ol , ▁who ▁has ▁been ▁brain w ashed . ▁Car ries ▁the ▁sword ▁Nag ase ▁( 流 星 ▁Sho oting ▁Star ). ▁Dev il ▁Sat an ▁ 6 ▁( play ed ▁by ▁Ken ichi ▁O no ) ▁Six ▁mon str ous ▁rob ots ▁that ▁can ▁combine ▁into ▁the ▁giant ▁Dev il ▁Sat an ▁ 6 ▁robot . ▁In ▁the ▁an ime ▁they ▁are ▁referred ▁to ▁by ▁number ▁instead ▁of ▁name . ▁Re leased ▁in ▁new ▁colors ▁as ▁the ▁Ren eg ade ▁combin er ▁Mon ster ous ▁in ▁the ▁Go B ots ▁to y ▁line . ▁Gill head ▁( F right ▁Face ): ▁( play ed ▁by ▁Ken ichi ▁O