When Michael comes to Roth's house, Mrs. Roth (although is it possible it's NOT his wife??) definitely calls him by a different name, although I'm not 100% sure what that name is.
Whatever she is, she makes a hell of a tuna sandwich.
"Io sono stanco, sono imbigliato, and I wan't everyone here to know, there ain't gonna be no trouble from me..Don Corleone..Cicc' a port!"