Donald P. Bellisario Creator, Executive Producer Glen A. Larson Creator Tom Selleck Thomas Sullivan Magnum Actor John Hillerman Jonathan Quayle Higgins III Actor Roger E. Mosley T.C. Actor Larry Manetti Rick Actor Mercedes McCambridge Agatha Kimball Guest Star Ted Danson Stewart Crane Guest Star Andrea Marcovicci Amy Crane, Carol Foster Guest Star Wallace W. Landford Fat Jack Guest Star Kanani Choy Eunice Guest Star Shirley Rogers Denise Guest Star Babs Greyhosky Writer T.J. Miles Writer Winrich Kolbe Director