David Jacob DJ Conner (played by Sal Barone in the pilot, and Michael Fishman for the remainder of the series; apparently Sara Gilbert didn't get along with Sal) - DJ was a lonely, bizarre, and unpopular child who was frequently taunted by his sisters and peers. He is portrayed as being something of a simpleton in school and abnormally weird, as in the time he peeked at both Darlene and Becky naked at different times, as well as the time Becky found dismembered Barbie dolls under his bed. As a teenager, he showed interest in filmmaking and eventually found a girlfriend who shared his interests. One episode dealt with DJ's relationship in a mature way, showing the couple's decision not to rush into a deep commitment too soon. His full name, David Jacob, was mentioned only two times during the show's entire run. He is said to have been born in 1982.___Michael Desmond Fishman, (born October 22, 1981 in Long Beach, California) is an American actor best known for playing Roseanne Barr Barr and John Goodman's son, D.J. Conner, on the long-running series Roseanne. He has made appearances in some movies and other TV shows. He graduated from Los Alamitos High School. In a recent Larry King Live interview with the cast of Roseanne, Fishman claims he wants to get back into the entertainment industry.Fishman married Jennifer Briner on his 18th birthday and has 2 children; a son and a daughter. He has an older sister named Robyn Danielle Fishman and a younger brother named Matthew Lewis Fishman (b. Dec. 15, 1991).