producer Tom Tryon (qv)  wanted Ingrid Bergman (I) (qv) for the role of Ada (the  Grandmother), and Mark Lester (I) (qv) for the dual roles of Niles  and Holland. When Bergman passed, on account of a previous stage  commitment, Uta Hagen (qv) was hired and brought aboard twins  Chris Udvarnoky (qv) and Martin Udvarnoky (qv).