Casting Principal
Patty Duke
Anna Marie Duke/ Patty Duke
Timothy Carhart
Harry
Howard Hesseman
John Ross
Deborah May
Ethel Ross
Ari Meyers
Patty Duke, as a youth
Millie Perkins
Frances Duke
Jenny Robertson
Patty, as a young adult
Arthur Taxier
John Astin
Matthew Perry
Desi Arnaz Jr.
Ray Duke
John Patrick Duke
Karl Malden
Doctor Harold Arlen