Proty was a Protean, a telepathic protoplasmic creature from Antares II who could transform its body into virtually any shape. It was adopted as a pet by Chameleon Boy.
Later, Proty sacrificed its life instead of Saturn Girl when the Legionnaires were attempting to revive their dead comrade, Lightning Lad.
Years later, thanks to the efforts of Proty's successor as Chameleon Boy's pet, Proty II, Proty's people were accepted as sentient beings and granted UP citizenship; thus they were no longer regarded as mere 'creatures'.
