Digital agency Digitas hired Richard Bennington as general manager. ... Brian Kastelein moved into the Richmond, VA office of Euro RSCG Discovery to oversee client services, strategy and business development. ... Jonathan Whitehead joined Santa Monica production company Unit 5 Productions as executive producer. ... Butler, Shine, Stern & Partners welcomed integrated creative director/Mullen Advertising alum Jordan Kretchmer as associate creative director. ... Motion graphics/design studio AvatarLabs named Brendan Lundeen director of production. ... Paradigm Agency LA enlisted directors of photography Barry Markowitz, ASC and Eric Larson for exclusive representation. ... Vancouver-based firm Rock Fight added director Mark Gilbert to its roster.