| Type: | cameo |
| Age Range: | 40 – 65 |
| Gender: | female |
| Voice Part: | |
| Vocal Range: | none |
| Dancing: | N/A |
| Name | Gender | Vocal Part | Age Range | Role Type |
| Servants, cockneys, opera goers, Ascot racetrack devotees, Embassy Ball patrons, street buskers | N/A | chorus | ||
| Alfred P. Doolittle | male | baritone | 40 – 70 | supporting |
| Butler | male | 25 – 50 | cameo | |
| Cockney Quartet | male | 25 – 60 | supporting | |
| Colonel Pickering | male | baritone | 40 – 65 | supporting |
| Eliza Doolittle | female | soprano | 17 – 30 | lead |
| Freddy Eynsford-Hill | male | tenor | 20 – 32 | supporting |
| Harry | male | 30 – 60 | cameo | |
| Henry Higgins | male | baritone | 40 – 60 | lead |
| Jamie | male | 30 – 60 | cameo | |
| Lady Boxington | female | 45 – 65 | cameo | |
| Lord Boxington | male | 45 – 65 | cameo | |
| Mrs. Eynsford-Hill | female | 40 – 60 | cameo | |
| Mrs. Higgins | female | 55 – 75 | cameo | |
| Mrs. Pearce | female | 40 – 70 | supporting | |
| Zoltan Karpathy | male | 30 – 50 | supporting |