Osirans had expanded brain-cases and a cerebrum like "a spiral staircase", which meant they particularly liked puzzles. They had a wide variety of advanced psychic powers, including mental and physical projection, mind control and telepathy. (TV: Pyramids of Mars, PROSE: The Sands of Time) One Osiran, Sutekh, looked somewhat like the traditional depictions of Set. He had grey skin, a jackal or donkey-like head with large, square ears and bright green eyes. (TV: Pyramids of Mars)