Rohmann was born in Yellow Springs, Ohio. He is a resident of Hadley, Massachusetts, but lived in the United Kingdom for many years until the early/mid 1980s. He wrote the novelty song "Funky Moped", covered by comedian Jasper Carrott whose version made it to number five in the British charts in the 1970s.
He was a regular performer on the folk club circuit in the UK and also enjoyed success at the Edinburgh Festival Fringe before returning to the United States.
Rohmann has been an actor, director, singer, songwriter, writer, and radio commentator as well as a member of the adjunct faculty of the Pioneer Valley Performing Arts High School (PVPA). He has written theater criticism and commentary for the Valley Advocate (Newspapers of New England Inc.) and the Daily Hampshire Gazette (also owned by Newspapers of New England Inc.).
- Heflin, James (October 8, 2009). "An Old Story Revisited: Northampton hosts one of 100 premieres of The Laramie Project: Ten Years, An Epilogue". Valley Advocate. Archived from the original on December 1, 2010. Retrieved July 20, 2010.