Dr. Leo McAllister -- Played by Frank Moore.
Dr. Leo McAllister.
First Appearance: "Body and Soul."
Details: Dr. McAllister was the third main researcher on The Walker Project, along with Drs. Dennis Malone and Mark Kearney. Years later, he was tracked down by one of the project's vengeful subjects, the astral projecting teenager Cyrus Payton, who murdered him.