Understudies listed below. Reminder: be sure to attend rehearsals for the character you are understudying : )
| Ariel | Erica | Beck |
| King Triton | Jeremy | Sauter |
| Scuttle | Rylie | Edwards |
| Mersister | All | Brittany | Stephens |
| Prince Eric | Brayden | Rutledge |
| Sebastian | Michael | McCormick |
| Flounder | Eliana | Yuen |
| Grimsby | Spencer | Hays |
| Ursula | Shanae | Tullis |
| Flotsam | Shanae | Tullis |
| Jetsam | Shanae | Tullis |