DCI Hall of Fame adds Casella, Gilligan-Martinez and three others for 2026
Five drum corps leaders, led by percussion arranger Jim Casella, will be inducted in Indianapolis as DCI’s Hall of Fame reaches 148 members.

Drum Corps International is putting the spotlight on the people who shape the sound, teaching and design of the activity as much as the performers on the field. Its 2026 Hall of Fame class includes Jim Casella, April Gilligan-Martinez, Erik Johnson, Sandi Rennick and Patrick Seidling, and the five will be honored during the DCI World Championships in Indianapolis this August.
The class arrives at a moment when the Hall of Fame’s role is especially visible. Established in 1985, the DCI Hall of Fame was created to recognize outstanding administrators, creators, instructors, judges and others whose work leaves a lasting mark on marching music. With this year’s additions, DCI says 148 people have been inducted. The organization elects new members in the spring, and the 2026 class is larger than the four-person group added in 2025.
For marching drummers, Casella is the most immediately recognizable name in the class and the clearest reminder that modern drum corps writing now reaches far beyond the stadium bleachers. He marched in the Santa Clara bass drum line from 1989 to 1991, later arranged for The Cavaliers from 2006 to 2009, and built a reputation for melodic percussion writing and full scores that tied battery and front ensemble together in a way many players now take for granted. He also co-founded Tapspace with Murray Gusseck in 1998, and the company says it has become one of the world’s leading publishers of percussion music. Tapspace and Casella’s biography also credit him with developing Virtual Drumline, a sample library that has been used for more than two decades by marching-band, drum-corps, indoor-percussion, film, media and concert composers.

The rest of the class reinforces how broad DCI’s definition of influence has become. Erik Johnson is credited with redefining the front ensemble’s role in the modern drum corps idiom and pushing the sideline into a more central musical voice. DCI describes Sandi Rennick as a pioneer who spent nearly three decades reshaping the sonic footprint of the modern percussion ensemble. Patrick Seidling’s path began in 1973 with the Sundowner Kadets in Eau Claire, Wisconsin, before he marched with the Madison Scouts and built a long instructional and corps-management career. April Gilligan-Martinez brings a color guard and design legacy that DCI has long treated as essential to the activity’s identity; a 2018 DCI item said she had served as caption head and designer for The Cadets’ color guard for well over 20 years.
The 2026 World Championships are scheduled for August 3-8, with competition days at Lucas Oil Stadium set for August 6-8 and Finals on Saturday, August 8. In a season built around performance, the Hall of Fame class is a reminder that the drum corps sound is also built by arrangers, educators, designers and builders who shape what the field hears next.
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