Complex sentence: The Character was shortly announced after the character of Izzy Armstrong was announced at the time his casting had not been announced a few weeks later it was announced that the character was to be played by Ian Puleston-Davies.
Split into simpler sentences: The character was shortly announced after the character of Izzy Armstrong was announced; at the time his casting had not been announced. A few weeks later it was revealed that the character was to be played by Ian Puleston-Davies.