Waiting for Guffman included the actress and comedian of what dual nationality?
Waiting for Guffman:  The film's cast includes Catherine O'Hara, Eugene Levy, Fred Willard, and Parker Posey. Catherine O'Hara: Catherine Anne O'Hara {'1': ", '2': ", '3': ", '4': "} (born March 4, 1954) is a Canadian-American actress, writer, and comedian.
Canadian-American