It is Don Marshall. The others are Jacques Plante in nets for the Rangers and the Big M (Frank Mahovlich) for the Leafs.
Here's another vintage hockey photo, with barefaced warrior Les Binkley for Pittsburgh defending against Dave Keon of the Leafs at Maple Leaf Gardens, circa 1967. Look at fans in stands and Conn Smythe's shirt and tie rule still being observed by season ticket holders.