Maniac Mansion Wiki

Dwayne is a novelty items designer. He is seen in the suite R of the Mansion wanting to kill himself but he fails even in this as the gun he uses is actually a flag gun. Bernard Bernoulli gives him a letter sent to Red Edison to lift his spirits. Thinking that his talents are accepted, he runs away in enthusiasm, presumably meeting another disappointment. In the hint book, Bernard thinks Dwayne maybe intent on drinking the Disappearing Ink to poison himself.

Dwayne seems to be a descendant of John Hancock.