Joe Cocker | Joe Louis | Bolton | Joe Henderson | Joe Satriani | Michael Bolton | Joe Biden | Joe DiMaggio | G.I. Joe | Joe Frazier | Bolton Wanderers F.C. | Joe Lovano | Fat Joe | Joe Dever | Joe Walsh | Joe Manchin | Joe Zawinul | Joe Namath | Joe Lieberman | Joe E. Brown | Joe E. Brown (comedian) | Joe | Joe Paterno | Joe Clark | Joe Bonamassa | Joe Dante | Joe Montana | Trader Joe's | John R. Bolton | Joe Sample |
Early on in his career, Gregory also appeared on other children's shows such as Captain Kangaroo, occasionally filled in for Sandy Becker, and appeared with the likes of Soupy Sales, Chuck McCann, "Officer" Joe Bolton, and others.