Surrey have also retained eight players on new two-year contracts - batsmen Walters, Matthew Spriegel, Arun Harinath and Michael Brown, bowlers Stuart Meaker, Simon King and Tim Linley, and wicketkeeper Gary Wilson.
Wild is in his second season at the Galpharm and, along with former Wigan players Kevin Brown, Martin Aspinwall and Stuart Jones, took extra pleasure from Sunday's comprehensive defeat of the Warriors.