He is probably best known for his work on the former, serving as a writer, director, and supervising producer until leaving the show about halfway through Turbo in 1997. He went on to eventually find himself at Disney, where he worked on several TV movies (the most well-known of which was Johnny Tsunami) and, following Disney's acquisition of the Power Rangers franchise, was later selected for another tour of duty with the series as co-executive producer (with Ann Austen) for 2003's Ninja Storm.
He stayed on for another year (2004's Dino Thunder) before leaving the show (along with Austen). Sloan stated prior to his departure he would not be returning to Power Rangers, though that remains to be seen.
Upon his return, he became heavily active within the Power Rangers community, posting on a fan board under the aliases "nsbigcheese", and later "Dino Dude". Sloan's visits frequently resulted in feedback and strong interaction with the community. Since then, many other cast and crew members have followed.
Sloan has also appeared onscreen in Power Rangers. He has guest-starred as Kimberly's Uncle Steve, a reporter, and Kimberly's stepfather too. He also voiced Prince Gasket in Zeo, although he wasn't credited for the role.
In the original pilot pitch for VR Troopers, then called Cybertron, Sloan played the father of the main character Adam Steele (PR alum Jason David Frank).
Douglas Sloan has served as executive producer for several made-for-cable original movies for Disney Channel including Back on Board (for which he also received a WGA award and Humanitas Prize for the script), Princess Protection Program, Minutemen, Dadnapped and Starstruck. Sloan also co-wrote and executive produced the upcoming 2010 made-for-cable film The Boy Who Cried Werewolf for Nickelodeon.