The raft of programming for the EastEnders anniversary includes a 45-minute interview special hosted by former star of the soap Joe Swash, and a special documentary, EastEnders: 40 Years On The Square, fronted by Kemp.
Kemp is returning to the BBC One soap as Grant Mitchell, the brother of Phil Mitchell (Steve McFadden) as the show celebrates its 40th anniversary this month.
Phil had an affair with Grant’s then wife Sharon Watts (Letitia Dean), and Grant slept with his brother’s former wife Kathy Beale (Gillian Taylforth), leading to them coming to blows.
Kemp has been absent for almost 10 years from Albert Square, with his last appearance in 2016 to mark his on-screen mother Dame Barbara Windsor’s final episode as Peggy Mitchell.
Bowen, 28, who is engaged to Love Island star Dani Dyer, recorded a special message for character Billy Mitchell (Perry Fenwick), wishing him well ahead of his wedding to fiancee Honey (Emma Barton).