Emmy winner Michael J. Fox will return to ABC's Spin City on Oct. 18 — although only his voice will be heard. Castmember Michael Boatman tells next week's Entertainment Weekly that Fox "checks in" with his former colleagues in the episode. He adds that the actor may appear "in one or two more episodes in which there will be more interaction with the rest of the cast." Charlie Sheen steps in this season for Fox, who left to battle Parkinson's disease.