The actor, whose character Mike Delfino was killed off earlier in the current season, confirmed that he will appear in the May 13 finale.
© ABC
© ABC
Mike will be seen with a number of other deceased Housewives characters, including Mama Solis (Lupe Ontiveros) and a Wisteria Lane favourite who will die in the episode.
"I'm pretty stoked," Denton told TV Guide. "A lot of great actors will be on that street - Steven Culp (Rex Van de Kamp), Roger Bart (George Williams), Richard Burgi (Karl Mayer), among others. If you gotta be dead, that's pretty good company."
Denton's on-screen wife Teri Hatcher (Susan Delfino) said back in March that she thought killing off Mike was "a bad idea".
She explained: "I pitched a story idea that in the finale he would be in an airport in Bolivia and MJ and I would run into his arms and discover the whole thing had been some undercover witness protection programme.
"It's sad to me that Susan, who started the series as a single, unloved mother, ends now in the same way."
Denton has landed a role in the Hot In Cleveland finale since leaving Desperate Housewives.
Desperate Housewives returns to ABC on April 29.
> 'Desperate Housewives' final episode title revealed
