I could recomend pretty much every player mentioned already, but here's a few others that you may of heard performing on songs on the radio:
Bernard Edwards (Chic)
Ray Brundidge (James Brown)
Mark King (Level 42)
Stuart Zender (Jamiroquai)
Shaun Ward (Simply Red)
Donald 'Duck' Dunn (Otis Redding, Wlison Picket, Elvis Presley - to name but a few!)
Larry Graham (Sly & The Family Stone)
Paul McCartney (Beatles - lets not forget he wrote some bad *** bass lines!)
Stefan Lessard (Dave Matthews Band)
Doug Wimbish (Mos Def, Living Colour, Mick Jagger, Rolling Srones, Annie Lennox, Madonna)
Tony Levin (Peter Gabriel, David Bowie, King Crimson)