| Avalos, Jessele | Recreation Leader, Senior | Recreation & Senior Services | | |
| Anderson, Morgan | Recreation Leader, Senior | Recreation & Senior Services | | |
| Alexander, Trasara | Recreation Leader, Senior | Recreation & Senior Services | | |
| Armas, Cesar | Recreation Supervisor | Recreation & Senior Services | 949-270-8109 | |
| Appeldorn, Gavin | Senior Pool Lifeguard | Recreation & Senior Services | | |
| Appeldorn, Fletcher | Senior Pool Lifeguard | Recreation & Senior Services | | |
| Algazi, Aidan | Senior Pool Lifeguard | Recreation & Senior Services | | |
| Alaluf, Josie | Senior Pool Lifeguard | Recreation & Senior Services | | |
| Aguilar, Miliana | Senior Pool Lifeguard | Recreation & Senior Services | | |
| Alvidrez, Michael | Utilities Crew Chief | Utilities | 949-718-3419 | |
| Aguirre, Richard | Utilities Crew Chief | Utilities | 949-718-3474 | |
| Aguirre, David | Utilities Crew Chief | Utilities | 949-718-3416 | |
| Auger, Christian | Utilities Supervisor | Utilities | 949-644-3019 | |
| Auger, Craig | Utilities Supervisor | Utilities | 949-718-3481 | |
