William Gerald Paris was an American actor and director best known for playing Jerry Helper, the dentist and next-door neighbor of Rob and Laura Petrie, on The Dick Van Dyke Show, and for directing the majority of the episodes of the sitcom Happy Days.

The Dick Van Dyke Show is an American sitcom created by Carl Reiner that initially aired on CBS from October 3, 1961, to June 1, 1966, with a total of 158 half-hour episodes spanning five seasons. It was produced by Calvada Productions in association with the CBS Television Network, and was shot at Desilu Studios. Other producers included Bill Persky and Sam Denoff. The music for the show's theme song was written by Earle Hagen.