Santer became Executive Producer of "EastEnders" on 23 October 2006, his first episode airing on 5 January 2007, replacing Kate Harwood . He introduced several characters to the show, including ethnic minority and gay characters to make the show 'feel more 21st Century'. Characters he introduced include Zainab Masood, Shabnam Masood, Masood Ahmed, Tamwar Masood, Christian Clarke, Whitney Dean, Tiffany Dean, Ronnie Mitchell, Roxy Mitchell, Archie Mitchell, Jack Branning, Heather Trott, Lucas Johnson, Ryan Malloy and Syed Masood. He also reintroduced a number of previous characters to the programme including Janine Butcher, Bianca Jackson, Steven Beale and Louise Mitchell. He also axed a number of characters including Kevin Wicks, Deano Wicks, Carly Wicks, Mickey Miller, Keith Miller, Honey Mitchell, Yolande Trueman, Garry Hobbs and Dawn Swann. He was also responsible for recasting the role of Bobby Beale