He is one of the last Homo Sapiens. He is being hunted by the Galactic Police as he destroyed a planet together with billions of its inhabitants. He lives on a spaceship that normally hides in Hyperspace, but occasionally returns to normal space. On one such visit he found Jedikiah. He also has a Time Key, and a telepath (Peter), and wants to go into Earth's history where he can be amongst 'Real Men' that could fight and kill. 

He was killed when he travelled down the Time Lanes opened by a booby-trapped Time Key, he was sent to the surface of Mercury with Jedikiah.

An undercover KGB agent. She works as a radio producer for a radio station that broadcasts from London to Russia.

Pavla asked to use the station to send a message to her parents. The radio producer alerted the KGB agents at the Russian Embassy, who recaptured Pavla.

A pupil in Stephen's class. He paints a strange picture "Change of Weather on Rexel4". It turns out to be an accurate picture of the planet. It also can change colour.

He lives with his grandfather above a junk shop. He does not know his parents, and knows that his grandfather is not his real grandfather. His grandfather received regular payments from a Swiss back account to provide for Robert. Robert uses the cellar of the shop, where he keeps a number of strange paintings and several boxes of blue and green badges.

Robert was an 'egg' of the alien race Denagelee. He was manipulating people around him to produce the violent energy he required to hatch. Initially Robert do not know that he was an alien.