Mandel was born in New York City. His father was a taxi driver. The writing duo later teamed up again with Howard on
Splash, for which Mandel, Ganz, and
Bruce Jay Friedman won the
National Society of Film Critics Award for Best Screenplay. Mandel, Ganz, Friedman, and Grazer were also nominated for the
Academy Award for Best Original Screenplay. The pair also wrote for the television series
Laverne & Shirley. They were the screenwriters for the 1992 sports movie
A League of Their Own, directed by
Penny Marshall. He married Denise Madelyn Horn in 1974. The
Online Archive of California houses the Lowell Ganz & Babaloo Mandel Collection of material related to their writing careers. ==Screenwriting credits (in Collaboration with
Lowell Ganz)==