| Project | Character | Genre |
| Holley Performance Products | Announcer | Phone System & On Hold |
| Hooker Headers | Announcer | Phone System & On Hold |
| Lunati | Announcer | Phone System & On Hold |
| Aaron’s Rental | Shaggy, Scooby, Announcer and Old Man Jenkins’s Assistant |
Radio |
| Weekend Shindig | Announcer | TV & Internet Video |
| Paloi Peeks | Announcer | TV |
| Clint Hedges Artist | Announcer | TV& Internet Video |
| FOX-TV | Announcer | Radio |
| Qdoba | Announcer | Radio |
| Big O Tires | Announcer | Radio |
| FSN South | Announcer | Radio |
| State Farm Ins. | Announcer | Radio |
| Hardees | Announcer | Radio |
| KHEAA (Kentucky Higher Education Assistance Authority) | Announcer | Radio |
| Kentucky State University | Announcer | Radio |
| Bluegrass Community College | Announcer | Radio |
| KNN (Kentucky News Network) – Promo | Announcer | Radio |
| Kiss FM – Louisville HD Promo | Announcer | Radio |
| Talk 1490 – Eye on The Earth Promo | Various Characters | Radio |
| McAllen Solutions | Guy 1 | Radio |
| Country Place Jamboree | Various Characters | Radio and TV |
| Dudes Brake Shop | Announcer and Luke Duke | Radio |
| MyWireless – Sprint | Announcer | Radio |
| Eagle Lake Convention Center | Announcer | Radio |
| General Rental Center | Various Characters | Radio |
| Main Street Music & More | Announcer | Radio |
| Crossroads Ford | K.I.T.T. | Radio |
| Bob Hook of Shelbyville | Announcer | Radio |
| Jeff Wyler Honda of Frankfort | Announcer | Radio |
| Capital Country 104.9 – Various Promos | Various Character | Radio |
| Star 103.7 – Various Promos | Various Character | Radio |
| WKYW 1490 – Various Promos | Various Character | Radio |
| Froggy 104.9 – Various Promos | Various Character | Radio |
Download the Resume Jonathan Mertz Voice-Acting Resume