Howard Keel as Adam and Jane Powell as Milly Jeff Richards as Benjamin and Julie Newmar (Newmeyer) as Dorcas Matt Mattox as Caleb and Ruta Lee (Kilmonis) as Ruth Marc Platt as Daniel and Norma Doggett as Martha Jacques d'Amboise as Ephraim and Virginia Gibson as Liza Tommy Rall as Frank and Betty Carr as Sarah Russ Tamblyn as Gideon and Nancy Kilgas as Alice

Who played alice in seven brides for seven brothers? Let's have some stream of consciousness first.
To answer this question, we should know that: Russ Tamblyn as Gideon and Nancy Kilgas as Alice So, the answer is Nancy Kilgas.