Complex sentence: Hordern cited Saint's Days negative publicity as having done him and his career "the power of good" and it brought him to the attention of the director Glen Byam Shaw who cast him in a series of plays at the Shakespeare Memorial Theatre in 1951.
Split into simpler sentences: Hordern cited Saint's Days negative publicity as having done him and his career "the power of good". Because of this he was brought to the attention of the director Glen Byam Shaw who cast him in a series of plays at the Shakespeare Memorial Theatre in 1951.