Ood Delta was an Ood owned by the thief Fergus Antelect. Antelect used Delta to telepathically relay what he imagined as illusions at his magic shows. Through this, he could steal the rich audience members' jewellery in plain sight with dozens of alibis not remembering him being anywhere near his victims. Delta was also regularly abused by Antelect. However, at one show at the Galactic Royal Hotel, the Tenth Doctor used Delta's abilities to manipulate the minds of the audience into thinking he had confessed to the crimes. Delta told Special Agent Ratner that though it was true that Antelect had not committed theft through manipulating chronometers, he was guilty of thirty-seven counts of theft, ninety-two counts of misleading the public through illegal telepathic manipulation, and one hundred and thirteen counts of cruelty to a sentient life form — namely Ood Delta. Delta projected memories of what actually happened at every one of Antelect's performances into the minds of the people in the room. The Doctor advised Ratner to check the security videos for the shows Antelect performed at, and Antelect was arrested. (PROSE: Disappearing Act)