▁developing ▁an ▁ant id ote ▁to ▁c ure ▁the ▁affected ▁people . ▁Or ca ' s ▁bio chem istry ▁knowledge ▁helps ▁save ▁the ▁city ▁and ▁she ▁rejo ins ▁the ▁Run - Off s ▁at ▁the ▁end ▁of ▁the ▁story ▁arc . ▁ ▁Dean ▁To ye ▁In ▁the ▁DC ▁Reb irth , ▁there ▁is ▁also ▁another ▁human / k iller ▁wh ale ▁hy brid ▁that ▁is ▁also ▁called ▁Or ca . ▁Serge ant ▁Dean ▁To ye ▁is ▁a ▁member ▁of ▁the ▁Aqu amar ines , ▁a ▁task - for ced ▁of ▁military ▁oper ates ▁trained ▁and ▁transformed ▁to ▁combat ▁Atl ant is ▁in ▁case ▁of ▁a ▁crisis . ▁As ▁the ▁second - in - command ▁to ▁Major ▁Rh onda ▁Ric oh ▁who ▁has ▁the ▁cod ename ▁of ▁" Gre at ▁White ", ▁Or ca ▁and ▁the ▁Aqu amar ines ▁are ▁dispatch ed ▁by ▁the ▁government ▁to ▁kill ▁Aqu aman ▁at ▁the ▁time ▁when ▁he ▁was ▁fr amed ▁by ▁the ▁organization ▁N . E . M . O .. ▁Or ca ▁and ▁the ▁Aqu amar ines ▁are ▁defeated ▁by ▁Aqu aman ▁and ▁are ▁det ained ▁by ▁the ▁Atl ante ans ▁as ▁prisoners ▁of ▁war . ▁ ▁Pow ers ▁and ▁ab ilities ▁The ▁Grace ▁Bal in ▁version ▁of ▁Or ca ▁has ▁en hanced ▁strength ▁and ▁end urance , ▁although ▁her ▁strength ▁has ▁not ▁been ▁en hanced ▁to ▁the ▁point ▁where ▁a ▁trained ▁f ighter ▁like ▁Bat man ▁would ▁have ▁significant ▁trouble ▁with ▁her ▁on ▁land . ▁Her ▁main ▁advantage ▁lies ▁in ▁her ▁exception al ▁sw imming