David Kohan Creator, Executive Producer Max Mutchnick Creator, Executive Producer Eric McCormack Will Truman Actor Debra Messing Grace Adler Actor Sean Hayes Jack McFarland Actor Megan Mullally Karen Walker Actor Blythe Danner Marilyn Truman Guest Star Hallee Hirsh Olivia Walker Guest Star Paola Presta Mark Guest Star James Burrows Executive Producer, Director Alex Herschlag Executive Producer David Flebotte Executive Producer Bill Wrubel Writer