TORONTO - Reality TV duo Tori Spelling and Dean McDermott will guest judge on the next season of "Top Chef Canada."

Food Network Canada says Toronto Raptors forward Amir Johnson and star chefs Chuck Hughes, Lynn Crawford and Susur Lee are among the other guest judges for the season.

Seven men and seven women will compete on the new season, which premieres March 10 (at 9 p.m. ET/10 p.m. PT).

Food Network says it's the "most extreme season" of the series, in which chefs from across the country battle for the title and prizes, including $100,000.

Actress Lisa Ray returns to host and critique dishes alongside head judge Mark McEwan and restaurateur Shereen Arazm.

Last month, McDermott's publicist confirmed the Toronto-born actor and "Chopped Canada" host had entered rehab for "some health and personal issues."