His writing credits include the television series Happy Days and the movie Night Shift.
Howie Mandel | Georges Mandel | Stewart Mandel | Harvey Mandel | Stephen Mandel | Marvin Mandel | Mandel School of Applied Social Sciences | Emily (Johnny Mandel and Johnny Mercer song) | Babaloo Mandel |
Crystal produced and co-wrote the screenplay with the writing duo Babaloo Mandel and Lowell Ganz.