Special Guest Stars Alyson Hannigan as Trina Echolls Guest Stars Max Greenfield as Leo D'Amato Alona Tal as Meg Manning Christopher B. Duncan as Clarence Wiedman Corinne Bohrer as Lianne Mars Zachery Ty Bryan as Caz Truman Cynthia LaMontagne as Catherine Lenova Co Starring Scott Michael Morgan as Karl Charley Rossman as Manny Marat Oyvetsky as Yevgeni Sukarenko Paul D. Roberts as Desk Manager William Regan as Martin