The master of meditation at the Temple of Shansu. His beliefs differed slightly from the traditional Shansu beliefs. He believed that the souls of the Child Gods could be transferred into any child, so any child could be made a god. He also believed that the child gods were killed before they reached maturity so that they would not try to take control.

When Hsui Tai contacted Mike, thought to be the lost god Kishnu, the Sage ordered him found so that he could be re-born. 

The Sage ordered John killed in the Hsui Tai and Mike's re-birth ceremony. This convinced Matsu Tan to try to stop the ceremony. It also convinced Hsui Tai that she and Mike would not be re-born, so she released herself and rescued John and Mike. 

The Sage lost his position within the temple, being replaced by Matsu Tan.

See Joy.

A KGB General based at the Russian Embassy in London. 

He was responsible for overseeing Pavla's visit to London to spy on the NATO conference. When she was captured by the SIS, he followed orders to terminate her using an implanted explosive device.

A army sergeant based at the Experimental Weapons Establishment. 

He drove Professor Cawston to Tyso's caravan. Jedikiah took his shape to infiltrate the Experimental Weapons Establishment. It is not know if Jedikiah killed him, or just stunned him.

A debt collector working for Lord Dunning. He mainly collects unpaid gambling debts with Two Tone. He is not very intelligent and usually just follows orders. He does not like to hurt animals. 

When Two Tone discovers Mike's ability to open locks he persuades him to help him to break into the National Victoria Bank. Mike manages to lock Two Tone and Slow in the vault.

He runs some funfair rides on Clacton Pier. He was recruited by Joy to work with her and Spidron. He assisted in the abduction of people to help with the mining work Joy and Spidron were carrying out. He was killed by Spidron when he gave some information to the Galactic Police.

They are a race of non-corporeal beings. They never appear on screen, but they are mentioned in several episodes. They are very advanced, and have befriended the Tomorrow People. When the Earth was about to be destroyed it was suggested that the Tomorrow People relocate to the the Sophron home world.

Trained some of the Human pilots in the operation of the Sorson battle ships.

The leader of the Sorson fleet sent to secure the Earth's solar system. His name is General Vishishnu. 

He met the American President and supplied him with Sorson battleships, and trained Human pilots. 

After Morgan Evans stole a ship and destroyed a Sorson ship, he ordered the withdrawal of all Sorsons from the solar system.

A race of non-telepathic non-humanoid aliens. They have advanced technology, but are still war-like. 

There is long running conflict between the Sorsons and the Thargons. A battle was fought just outside the Earth's solar system. The Sorsons then set up a base on the Moon, and then landed on Earth and made contact with the American President. 

They had been observing Earth through television and radio transmissions. They have a sense of humour, when they landed on Earth the first thing they said was "Take me to your leader.". 

After a Sorson battle ship was destroyed by another ship piloted by Morgan Evans, they left the solar system.

A galactic criminal that works with Joy. They mine Magnamite from planets and leave just before the planet breaks up. He was about to be arrested by Steen, but escaped. 

Spidron is able to change his body into a liquid state.

He is a Galactic Policeman. Recently he has been tracking Spidron and Joy, following them to Earth. His full name is Harry Steen.

Stephen broke-out at the start of the first episode, just before he was captured by Jedikiah. 

His surname is Jameson. At the beginning he is still at school, and is taught by Elizabeth. He is supposed to be 15 years old during Secret Weapon.

She is a young Thargon on the run with Flyn. They are being hunted by a Thargon Thick Ship. They leave their Thick Ship in a short range Slim Ship which they land on Earth. They attempt to fool the Tomorrow People in to thinking that they are innocent, but they are not believed. They then meet General Papa Minn.