Guest Stars Gina Torres as Penelope Foster Patrick Fabian as Peter Monroe Gail O'Grady as Margo Gower Lachlan Buchanan as Stone Gower Joseph Williamson as Charlie Green Chris Butler as Bob Foster Mark Elias as Jeff Jessica Manuel as Abby Rollins Artie O'Daly as Building Manager Julian Stone as Mike Chilean Makinna Ridgway as Hannah Green Nancy La Scala as Colette Robinson Heather Ann Davis as Ashley Robinson