Kelsey Grammer Dr. Frasier Crane Actor, Executive Producer John Mahoney Martin Crane Actor Jane Leeves Daphne Moon Actor David Hyde Pierce Dr. Niles Crane Actor Peri Gilpin Roz Doyle Actor Tom McGowan Kenny Daly Guest Star Alan Cumming Ahmrit Guest Star Mary Kowalski Trudy Guest Star Laura Linney Mindy Guest Voice David Angell Executive Producer Peter Casey Executive Producer David Lee Executive Producer, Director Mark Reisman Executive Producer Dan O'Shannon Executive Producer Bob Daily Writer