DETROIT — Barry Bremen, a Detroit-area businessman whose gate-crashing stunts led him to shoot layups before NBA All-Star games, accept an Emmy Award for best supporting actress and pose as a Dallas Cowboys cheerleader, died of cancer at age 64.

Sometimes called the Great Impostor, Mr. Bremen became known to millions during the 1980s for sneaking onto professional courts and fields.

He died June 30 in Scottsdale, Ariz., where he lived with his wife, Margo. A memorial service was held for family and friends Tuesday in Southfield, Mich., after a funeral and burial in Phoenix.

Some of his more famous exploits included being chased off the field by Tommy LaSorda — then the Los Angeles Dodgers manager — during the 1986 All-Star game warm-ups and slipping onto the stage to accept an Emmy award in 1985 for Betty Thomas of Hill Street Blues before she could make her way to the microphone.

In 1979, Mr. Bremen put on a blond wig and scanty uniform and tried to dance with the Dallas Cowboys cheerleaders in the last two minutes of a game. Irving police arrested him, and the Cowboys sued for damages. He promised never to do it again.

Mr. Bremen ran a successful merchandising business in the Detroit suburb of Bloomfield Hills. Friends say he began his career as the Great Impostor in 1978 while attending a Detroit Pistons game. He casually made his way toward the visiting Kansas City Kings bench and grabbed the warm-up suit of a Kings benchwarmer, getting some floor time in the final minutes of his team’s rout of the lowly Pistons.

The get-up reappeared a few months later in the NBA All-Star game. After an air ball and a couple of clunkers, players started feeding him the ball.

Mr. Bremen’s list of stunts included showing up at home plate dressed as an umpire before a 1980 World Series game in Philadelphia between the Philadelphia Phillies and Kansas City Royals; and playing a practice round with Fred Couples and Curtis Strange at the 1985 U.S. Open at Oakland Hills, Mich.

Barry Michael Bremen