http://www.youtube.com/watch?v=NBA_MNhFg0U
It’s well known that Richard Dreyfuss made his film debut with an uncredited one-line bit part in The Graduate, but by that point, he had already amassed a small list of credits doing guest appearances on television shows. One of these was a stint on an episode of Bewitched where the 18-year old actor played a warlock who has a major crush on Samantha and tries to sabotage her marriage. One of his spells involves turning himself into a dog and wreaking havoc on the household.