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 Shelley Morrison Rosario Salazar Actor Macaulay Culkin Jason 'J.T.' Towne Guest Star Clark Gregg Cam Guest Star James Burrows Executive Producer, Director Jeff Greenstein Executive Producer Sally Bradford Writer Alex Herschlag Executive Producer Jhoni Marchinko Executive Producer