Los Angeles — Michael J. Fox appears to be headed back to Spin City.

A year after giving up his starring role on the hit ABC sitcom to focus on his battle with Parkinson's disease, Fox strongly suggests he will return for a guest spot on the show this fall.

The stage for his upcoming appearance apparently was set during last month's season finale, when the new deputy mayor played by Charlie Sheen shows up at the apartment of Heather Locklear's character to profess his love, only to find she already has company.

In an interview airing Monday on the syndicated TV show Access Hollywood, Fox hints he was Locklear's unseen guest in that episode.

Asked under what circumstances he would return to Spin City, Fox replied: “Boy, I'm saying more than I really should, but if anybody saw the final episode, when he walks into her apartment, you don't see what he sees there, so ...”

Fox is in a good position to talk about the coming season, as he remains an executive producer of the comedy.

The diminutive actor, who turns 40 on Saturday, bowed out of his Spin City role as New York Deputy Mayor Michael Flaherty at the end of the show's fourth season last May. His last episode drew the show's largest audience, 32.8 million viewers, and four months later he won an Emmy as best actor in a comedy series.

Fox, who has said he wanted to leave the show on his own terms before Parkinson's debilitated him, told Access on Monday he has his good days and bad days.