LOS ANGELES (AP) _ Walter Brooke, who began his acting career on the Broadway stage with Laurence Olivier and appeared in 45 movies and hundreds of television shows, has died at age 71.

Brooke died here Wednesday after after a long battle with emphysema.

The New York City native earned his first acting credits in ''Romeo and Juliet,'' starring Olivier and Vivien Leigh.

After additional appearances in Broadway productions such as ''The Second Man'' and ''The Eagle Has Two Heads,'' Brooke moved to early television as Bill Herbert in ''One Man's Family'' from 1950 to 1952 and later appeared as District Attorney F.P. Scanlon on ''The Green Hornet'' from 1966-67.

He was a regular on ''The Waltons,'' ''Paradise Bay'' and ''Hotel Cosmopolitan,'' and made appearances on ''Cagney and Lacey,'' ''Paper Chase,'' ''Simon and Simon'' and ''Knots Landing.''

His movies included ''North Dallas Forty,'' ''Executive Suite,'' ''The Lawman,'' ''Omen II'' and ''The Graduate.''

Brooke was a national director of the American Federation of Television and Radio Artists and an officer of Actors Equity.

He is survived by his wife, Yvonne, a son and a daughter.