WALTER GREAZA was well trained for his role as Chief of the Bureau ón "Treasury Men in Action" (ABC-TV). He was starred for eight years on the " Crime Doctor" radio series, and played law-enforcers in numerous films. A native of St. Paul, Minn., he studied drama at the University of Minn., served in the Navy in World War 1, joined a stock company at war's end, appeared in many Broadway hits. Married to actress Helen Ambrose, he lived in Forest Hills, N.Y., wrote verse.