Marcus Canterbury is an American retired professional wrestler. He is best known for his appearances with the World Wrestling Federation in the mid to late 1990s under the ring name Henry O. Godwinn. He is also known for his appearances with World Championship Wrestling in the early 1990s as Shanghai Pierce. In 1996, Canterbury was reunited with Knight, who had been renamed Phineas I. Godwinn. The duo were portrayed as being cousins and were collectively known as "The Godwinns". The two were faces and were managed by Hillbilly Jim. They began to feud with the Body Donnas with Phineas having a crush on Sunny and signed her as their manager. They would beat the Body Donnas for the WWF Tag Team Championships. Eventually Sunny turned on them costing them their titles. The Godwinns feuded with the now heel Smoking Gunns, in losing efforts. In 1997, the Godwinns began a heel turn dropping Hillbilly Jim as a manager and picking up Uncle Cletus. The Godwinns quickly won the tag titles a second time from The Headbangers and began a heated feud with the Legion of Doom, which saw the team attempt to break Road Warrior Hawk's neck. They eventually dropped the titles to LOD in a match on WWF Monday Night Raw that had LOD's career on the line. Soon after that match they attacked and fired Cletus.

In April 1997, in a rematch between The Godwinns and the Legion of Doom, Canterbury cracked his C7 vertebra when he fell on his head after taking the Doomsday Device. He was advised by doctors to rest for fifteen weeks, but returned to the ring in less than eight weeks.

In 1998, Canterbury entered the Brawl for All, a shoot-fighting tournament held by the WWF. He lost in the first round to Bradshaw.

Later that year, the Godwinns dropped their pig farmer gimmicks, now going by their real names and wearing sharp suits under the name "Southern Justice", the bodyguards of Tennessee Lee. Six months later, Canterbury herniated his C7 vertebra and pinched a spinal nerve, necessitating spinal fusion surgery. This came as a result of him returning to the ring too early after his neck injury. He eventually left the WWF and retired, due to the neck injury suffered in 1997.

In September 2006, Canterbury wrestled several tryout matches with World Wrestling Entertainment. On September 15, 2006, WWE announced that he had been signed to a contract.[3] He debuted in Deep South Wrestling on November 30 as a tag partner for Ray Gordy. Gordy was known as Cousin Ray and they both reformed The Godwinns. Since both Gordy and Drew Hankinson went to the SmackDown brand, however, Godwinn's role remained uncertain.

On May 19, 2007, the Wrestling Observer reported that Canterbury had been released from his Personal life

Canterbury has two sons, named Shane and Jordan. Jordan was accidentally shot by a high school friend and died on October 31, 2003 in Pigeon Forge, Tennessee. On November 9, 2011, Mark suffered two punctured lungs, thirteen broken ribs and a broken leg in a car accident.

In July 2016, Canterbury was named part of a class action lawsuit filed against WWE which alleged that wrestlers incurred traumatic brain injuries during their tenure and that the company concealed the risks of injury. The suit is litigated by attorney Konstantine Kyros, who has been involved in a number of other lawsuits against WWE.