Vanessa Williams and Rick Fox reunite on "Ugly Betty".

Can you say Awkward?
Their last partnership may have ended in divorce, but Rick Fox and Vanessa Williams are making another go at it – at least onscreen. Fox, 38, will join the cast of ABC's Ugly Betty in its second season, a source confirms to PEOPLE exclusively. "Things get heated [between their characters]," the source says of Fox's guest-starring role. Williams, 44, who got an Emmy nod for her turn as villainous magazine editor Wilhelmina Slater, can look forward to bossing around her ex-husband. "He'll be playing Dwayne her bodyguard," the source says. "He'll be there for at least two episodes."