American radio, film and television director who directed For the World Is Hollow and I Have Touched the Sky, a third-season episode of the original Star Trek.
Tony Leader, also credited as Anton M. Leader, made his reputation in American radio drama before moving into television, and directed the 1964 feature Children of the Damned.
His one Star Trek credit is For the World Is Hollow and I Have Touched the Sky. McCoy learns he has the incurable disease xenopolycythemia just as the Enterprise finds Yonada, an asteroid that is really a generation ship on a collision course with an inhabited planet. Its people, ruled by a computer called the Oracle, do not know they are aboard a vessel, and McCoy chooses to stay with the high priestess Natira.
The knowledge banks of Yonada's builders, the Fabrini, finally supply a cure.