Mark Casey has received international recognition as a performer, teacher, composer, and adjudicator within the percussion activity.  He has worked with the likes of The World Champion Cavaliers Drum and Bugle Corps, The World Champion Phantom Regiment Drum and Bugle Corps, The Yamato Drum and Bugle Corps, The University of Kentucky, The University of Miami Florida, The University of Nevada Las Vegas, The Miami of Ohio University, The McGavock High School Marching Band, and The Lafayette High School Marching Band.  

Mark has judged for Kentucky, Tennessee, Georgia, and Indiana state-sanctioned shows and has also been a judge for SCGC, WGI, and PAS.