Gallagher had been heard on a number of Cleveland radio stations over the years, putting in 40 years ol the air.
According to his LinkedIn page, he was with Metro Networks from 1991 to 2009 doing traffic and news reports. Gallagher then hosted the morning show on WNWV 107.3 FM from 2009 to 2011. He then joined iHeartMedia in 2012, working for the Total Traffic service, doing traffic and news reports, mainly on 1420 WHK with the air name of Mike Kessler.
Local radio historian Jim Davison noted that Mike also worked at 92.3 WLYT, 92.3 WRQC, and 106.5 WLTF.