After the show ended in 1988, Cohn continued acting in a variety of programs, such as 21 Jump Street and The Middle. From 2002 until 2015, Cohn was the voice behind Velma Dinkley in the Scooby-Doo franchise. It was revealed in 2017 that Cohn had been battling breast cancer since 2012. Fortunately, Cohn is now cancer-free.
Gary Coleman
Gary Coleman was one of the highest-paid child actors in the late 1970s and early '80s. He was best known for his role as Arnold Jackson in Diff'rent Strokes, which earned him numerous awards. Despite his successful acting career, Coleman struggled later in life.