His first adult role was in the 1975 film Exploring Young Girls. He followed with films such as Summer of Laura, My Sex-Rated Wife, Marishino Cherries, John Derrick's Love You, and Teenage Pajama Party as The Sheik. Nichols also appeared in the 1975 adult gay film Boynapped!
In 1979, using the name Dennis Parker, he recorded an album of disco songs on the Casablanca label.
Also under the name Dennis Parker, he was known for playing Police Chief Derek Mallory on the soap opera The Edge of Night from 1979 to 1984. During the final weeks of the show, he was too ill to tape any episodes and, had the show not been cancelled, he would have been replaced.
He committed suicide after he was diagnosed with AIDS.
In 1979, using the name Dennis Parker, he recorded an album of disco songs on the Casablanca label.
Also under the name Dennis Parker, he was known for playing Police Chief Derek Mallory on the soap opera The Edge of Night from 1979 to 1984. During the final weeks of the show, he was too ill to tape any episodes and, had the show not been cancelled, he would have been replaced.
He committed suicide after he was diagnosed with AIDS.