Sean Slater has returned to EastEnders to save Amy Mitchell from Craig Ingram. The past few episodes have seen Amy's loved ones attempt to rescue her after she and Craig left Walford with plans to flee the country.This led to Sean coming back to Albert Square to assist Jack, Denise and others in bringing the teen back - but what exactly is his relationship with Amy? Played by Robert Kazinsky, the character first arrived on the soap in 2006 as Stacey Slater's (Lacey Turner) brother.