Guest Stars Nicholle Tom voices Supergirl / Kara Kent Malcolm McDowell voices John Corben / Metallo Paul Guilfoyle voices Travis Morgan / The Warlord Nicholas Guest voices Dino Trooper Kim Mai Guest voices Silver Banshee / Siobhan McDougal Giselle Loren voices Courtney Whitmore / Stargirl Douglas Dunning voices Deimos Uncredited Nicholle Tom voices Shakira Phil LaMarr voices Machiste Phil LaMarr voices Patrick Dugan / S.T.R.I.P.E. Kim Mai Guest voices Jennifer Morgan Kim Mai Guest voices Supergirl Fan