Den was married to Angie (played by Anita Dobson) and together they managed the Albert Square pub, the Queen Victoria. Den was notorious for his extramarital affairs and shady dealings, which earned him his nickname. The affairs included ones with Michelle Fowler (then sixteen, who bore him a daughter, Vicki), Jan Hammond and Paula Rickman, who bore him a son, Dennis.
Den was shot in 1989 by a hitman and presumed dead. However in 2003 it was revealed that the death was faked, and he is returning to Albert Square.
Dennis Watts is played by Leslie Grantham.