Kammala wannan jumla: A watan Agusta 1985, bayan ya buga wasanni sama da 150 ga Lincoln, Thompson ya koma Charlton Athletic. A wasansa na karshe na Lincoln ya kasance mai shaida ga mafarki mai ban tsoro lokacin da aka kashe 'yan kallo 56 a cikin wani
mummunar tsayawa wuta yayin wasa Bradford City. Ya zama kyaftin na Charlton kuma ya jagoranci su zuwa gabatarwa zuwa Division na farko da wasan karshe na Simod Cup.