Complex sentence: Dean Upton, played by Justin Moorhouse, will make his first screen appearance in August 2014, as the landlord of the "Flying Horse" pub-which is the rival to the Rovers Return Inn.
Split into simpler sentences: Dean Upton, played by Justin Moorhouse, will make his first screen appearance in August 2014. Dean is the landlord of the Flying Horse public house, which is the rival to the Rovers Return Inn.