Celebrities who are 6'4

Robert Terry is a Welsh bodybuilder and a former professional wrestler. He is known for his work in Total Nonstop Action Wrestling (TNA) under the ring names Rob Terry and The Freak.Wikipedia

Shawne DeAndre Merriman, nicknamed "Lights Out", is an American former professional football linebacker in the National Football League (NFL). He played college football for the Maryland Terrapins and was selected 12th overall by the San Diego Chargers in the 2005 NFL Draft. He earned NFL Defensive Rookie of the Year honors in his first season and recorded 39+1⁄2 quarterback sacks in his first three seasons, also making three Pro Bowls as well as two All-Pro selections. He was hampered by injuries his next three seasons, and the Chargers waived Merriman midseason in 2010. He was picked up through waivers by the Buffalo Bills that season, but he only played minimally with the Bills due to continued injuries. He was released by the Bills before the 2012 season before they re-signed him midseason. He retired at the end of the 2012 season.Wikipedia

Stephen Marcus is a British actor, best known for his role as Nick the Greek in the film Lock, Stock and Two Smoking Barrels.Wikipedia

Tony Craig Tucker is an American former professional boxer who competed from 1980 to 1998. He won the IBF heavyweight title in 1987, and was the shortest-reigning world heavyweight champion at just 64 days. In an interview with Barry Tompkins, he referred to himself as the "invisible champion," due to the press and general public largely neglecting him. He is best known for giving Mike Tyson in his prime a relatively close fight, in which he, in the words of Larry Merchant, "rocked Tyson" in the first round. However, Tyson went on to win a unanimous decision. As an amateur, he won the 1979 United States national championships, the 1979 World Cup, and a gold medal at the 1979 Pan American Games, all in the light heavyweight division.Wikipedia