Most Appearances (Performer)
| Name | Role(s) | # |
|---|---|---|
| 596. Happy McPartlin | Vocals | 1 |
| 596. Happyness | Featured Artist | 1 |
| 596. Harmony Bartz | Vocals | 1 |
| 596. Harold López-Nussa Trio | Featured Artist | 1 |
| 596. Harris Paseltiner | Musician | 1 |
| 596. Harrison Hawkins | Keys, Music Director | 1 |
| 596. Harrison Moore-Kondo | Guitar, Steel Guitar | 1 |
| 596. Harrison Whitford | Guitar | 1 |
| 596. Harry Deacon | Background Vocals, Bass, Glockenspiel, Keys | 1 |
| 596. Harry Stinson | Drums, Vocals | 1 |
| 596. Harry Styles | Guitar, Vocals | 1 |
| 596. Hart Seely | Bass, Vocals | 1 |
| 596. Harumi Rhodes | Violin | 1 |
| 596. Harv | Bass | 1 |
| 596. Hauschka | Piano | 1 |
| 596. Hayden Pedigo | Featured Artist | 1 |
| 596. Hayley Briasco | Banjo, Guitar | 1 |
| 596. Hazel Mills | Keyboard, Vocals | 1 |
| 596. Heather Baker | Guitars | 1 |
| 596. Heather Crawford | Guitar | 1 |
| 596. Heather Woods Broderick | Keys, Vocals | 1 |
| 596. Hector "Coco" Barez | Percussion | 1 |
| 596. Hector Barez | Percussion | 1 |
| 596. Hector Espinosa | Congas | 1 |
| 596. Hector Meléndez | Piano | 1 |