American stage and television director who directed two third-season episodes of the original Star Trek, Plato's Stepchildren and The Way to Eden.
David Alexander came to television from the theatre, where he had directed on Broadway, and worked through the 1960s on a wide range of filmed series.
He directed two episodes of the original Star Trek's third season. Plato's Stepchildren pits Kirk, Spock and McCoy against the telekinetic Platonians, who humiliate their guests for sport; it is remembered for the kiss forced on Kirk and Uhura and for Michael Dunn's performance as Alexander. The Way to Eden brings aboard Dr Sevrin and his young followers, who reject technological society and are searching for the mythical planet Eden.
Both episodes are among the most talked-about of the final season, for very different reasons.