After teasing the possibility on Twitter and THE ELLEN DEGENERES SHOW, EW.com has confirmed that Josh Duhamel, who launched his career on AMC as Leo, will reprise the Emmy-winning role for a guest spot in August. No word yet as to whether Leo, who was presumed dead after plunging over Miller's Falls in November 2002, will appear alive, as a ghost, or as a vision of widow Greenlee's (Rebecca Budig).