Dwayne appeared in 1942 by portraying in an American series, a short comedy movie, "Our Gang"; which was directed by Edward Cahn. Later he co-starred in an early episode of the syndicated military drama," Men of Annapolis" along with Darryl.
After that Dwayne started working with Cummings, whom he considers his childhood television hero and also said that Cummings taught him everything he knows about acting. They worked together throughout five seasons for Bob Cummings Show.
Later Hickman appeared on NBC's The Ford Show, Starring Tennessee Ernie Ford. He also appeared in an episode of ABC's circus drama, "The Greatest Show on Earth," starring Jack Palance. In 1965 Hickman featured in the comedy film, "Cat Ballou" with Jane Fonda and Lee Marvin as well as in the movie, "Dr. Goldfoot and the Bikini Machine".
Apart from acting, Hickman worked as a programming executive at CBS as well as a director on various television series, including Designing Women and Head of the Class. Moving towards his personal life, Dwayne belongs to the white ethnicity and holds an American nationality.
Hickman has a long list of girlfriends; he was in a relationship with Myrna Fahey (1961) and Sherry Jackson (1960). He also married various wife including Joan Roberts (1983), Joanne Papile (1977) and Carol Christensen (1963). Currently, he is single and has no any affair.
Bernard lavish lifestyle strongly buys a point that he has a satisfying income source. His current estimated net worth is around $500K.