Richard L. Michael Jr., 64, a retired Marine colonel who had commanded a regiment in Vietnam, died at Fairfax Hospital Jan. 3 after a heart attack.

Col. Michael, who was stricken at his home in Annandale, was born in Baltimore. He graduated from Loyola College there and later took a master's degree at George Washington University.

He began his Marine career during World War II, in which he served in the Pacific. He later was in China and he was in Korea during the war there.

He went to Vietnam in 1967 as an adviser to the South Vietnamese Marine Corps. In 1968, he was named commanding officer of the Third Marines, an infantry regiment in the 3d Marine Division. He was stationed in the office of the Joint Chiefs of Staff when he retired in 1974.

After leaving the service, Col. Michael became eastern regional government sales manager of DHL Airways Inc., a delivery and courier company. He continued that work until his death.

His military decorations included two Legions of Merit with combat "v" and the Navy Commendation Medal.

Survivors include his wife, Jane Michael of Annandale, and two stepsons, Marine lst Lt. William Groom Leftwich III of Camp LeJeune, N.C., and Navy Lt. j.g. Scott F. Leftwich, who is stationed in Iceland.