
| Name | Show | Role Size | Age | Gender | Voice |
| Abhorson | Measure for Measure | cameo | 25 - 45 | male | spoken |
| Abigail | Big | supporting | 25 - 40 | female | |
| Abigail Barclay | Sweet Smell of Success: The Musical | N/A | - | female | |
| Abigail Torpen | Small War on Murray Hill | - | female | spoken | |
| Abigail Williams | The Crucible | lead | 16 - 18 | female | spoken |
| Abigaille | Nabucco | lead | 21 - 35 | female | soprano |
| Abimelech | Samson et Dalila (Samson and Delilah) | supporting | 35 - 65 | male | bass |
| Abner | South Pacific | cameo | - | male | |
| Abner Dillon | 42nd Street | supporting | 50 - 70 | male | spoken |
| Abner Zook | Plain and Fancy | N/A | - | male | |
| Abraham | Altar Boyz | lead | 24 - 29 | male | tenor |
| Abraham Kaplan | Street Scene | supporting | 45 - 60 | male | tenor |
| Abraham Lincoln | The Rivalry | lead | 45 - 54 | male | spoken |
| Abraham Lincoln | Abe Lincoln in Illinois | lead | 20 - 40 | male | spoken |
| Abraham Van Helsing | Dracula | lead | 40 - 60 | male | spoken |
| Abram | Romeo and Juliet | cameo | 20 - 40 | male | spoken |
| Absalom Kumalo | Lost in the Stars | lead | 20 - 30 | male | |
| Abu Al-Hasan | The Arabian Nights | cameo | 30 - 50 | male | spoken |
| Abu Hasan/Chu Chin Chow | Chu Chin Chow | lead | 30 - 40 | male | |
| Abu Hassan | Abu Hassan | lead | 28 - 40 | male | tenor |