People United States of America Mike Callahan peoplepill id: mike-callahan-4MC 14 views today 28 views this weekAmerican referee, sports coach, baseball coachMike CallahanBiographyFilmography (1)ListsAlso ViewedListsMike Callahan is in following listsBy field of workNotable American athletesGender:MaleBy work and/or countryNotable American RefereesGender:MaleNotable American Sports coachesGender:MaleNotable American Baseball coachesGender:MaleFrom our partnersSponsoredMike Callahan