Marla Frumkin, who sometimes went by the name Maria Frumkin, provided the voice of Velma Dinkley for a short period beginning in 1979–1980 and a little bit in 1982. Frumkin replaced Pat Stevens as the voice of Velma. Frumkin voiced the character in four episodes of Scooby Doo and Scrappy Doo show at which point Velma was no longer a regular character. When Velma's character returned, Frumkin once again provided the voice for a short period. This was The Scooby Doo and Scrappy Doo Puppy Hour.
Frumkin also appeared on television shows like Quincy M.E. and Mr. Belvedere, as well as a handful of other shows during the 1980s. Frumkin's last credited work, according to the internet movie database, was in 1989.