Jack the Bulldog (John S. Carroll), official mascot of the Georgetown University Hoyas
Lewis Carroll | Jack Kerouac | Jack Nicholson | Jack Nicklaus | Jack the Ripper | Jack London | Jack Kemp | Jack Kirby | Jack Lemmon | Jack Black | Jack Abramoff | Jack Dempsey | Jack Benny | Jack White | Wolfman Jack | Union Jack | Jack White (musician) | Jack and the Beanstalk | Jack Johnson | Jack Charlton | Carroll | Jack Palance | Jack Daniel's | Jack | Jack Paar | Jack Layton | Jack Straw | Lewis Carroll's | Jack Vance | Jack Bruce |