Oliver North has made good a promise to call the nation's top officials to testify in his upcoming Iran-Contra trial, issuing subpoenas for Secretary of State George Shultz and other key figures after earlier seeking appearances by Ronald Reagan and George Bush.

Other important figures in the White House, State and Defense Departments and Central Intelligence Agency also were subpoenaed by North Tuesday along with former Defense Secretary Caspar Weinberger and ex-White House chief of staff Donald Regan, U.S. officials and informed sources said.President Reagan, who has called North a national hero, was served with a subpoena last week along with President-elect Bush.

"We have received subpoenas for a number of department officials including Secretary Shultz," State Department spokeswoman Phyllis Oakley said in an interview.

North, a retired Marine lieutenant colonel who served in the White House, is due to stand trial beginning Jan. 31 on charges of conspiracy to defraud the government, theft of government property and other alleged felonies stemming from the Iran-Contra scandal.