Jack the Bulldog
Jack the Bulldog is the official mascot of the Georgetown University Hoyas athletic teams. Jack has been the name of at least five live Bulldogs since 1962, when the name first came into use, though Georgetown counts seven official bulldog mascots including the two living ones. The current incarnation of Jack is an English Bulldog born in 2013 whose full name is John B. Carroll.
1977–78 Georgetown Hoyas men's basketball team
Although English bulldogs named Jack have appeared along the sidelines of Georgetown basketball times during various seasons since 1962, the 1977-78 season was the first in which a human in a bulldog costume portrayed Jack the Bulldog. Originated by Georgetown freshman Pat Sheehan, who was Jack for four seasons before graduating in 1981, the human Jack the Bulldog has been a fixture at Georgetown games ever since.