Lombardo Boyar, who appears opposite Omar Epps in “Brother”, and Cynthia Watros (“Titus”) will join Steve Guttenberg in the comedy “P.S. Your Cat Is Dead.” Boyar also had a lead role in the indie feature “Blink of an Eye,” which preemed this year at Slamdance. He is repped by Greene and Associates. Watros, an Emmy winner for her work on sudser “Guiding Light,” is repped by Innovative Artists.