Mark Fowler Jr is heading back to Walford to join his older sister Vicki Fowler (Alice Haig) and the Mitchell family later this month. Stephen Aaron-Sipple has taken on the role of Mark and joined the cast in October. He has already made his debut when he appeared in the recent New Years Day flashforward episode, placing him at the centre of the Branning’s unfolding drama.Little is known about why Mark has returned and what he has been up to in the time he has been away, but it soon becomes clea