Leo Graf was an engineer working for GalacTech and specializing in testing and failure analysis. During his eighteen year career with the company he gained a very high reputation and helped a number of accident investigations come to a successful close. During at least one of these investigations Leo was responsible for the discovery of fraudulent inspection records which had resulted in the deaths of eighty-six people.

In the later years of his career he spent a fair amount of time teaching and it was such an assignment which took him to Cay Habitat.

Discovering that GalacTech wanted to abandon the Quaddies it had created, he created a plan to get the Quaddies out of the reach of GalacTech and to safety.

With the help of Dr. Minchenko, a jump pilot called Ti and the 1000 Quaddies, Leo arranged for the Cay Habitat personnel to be isolated and deported. They captured a jump ship, a super-carrier, and attached the restructured Cay Habitat to it so that it could move and, more importantly, jump through a wormhole. Most astonishingly of all, he created a replacement vortex mirror for the carrier’s necklin drive using only the most basic of tools.

With the repaired and restructured habitat/jump-ship they escaped into the Orient IV system.

Nothing more is known of Leo Graf, with the exception that the Quaddies did find a new home out of reach of GalacTech.