- "Don't give me that Sky Kid! It's past your bedtime!"
- ― AWACS Ghost Eye
Stephen McCarthy, callsign Sky Kid, was a Republic of Emmeria Air Force fighter pilot and flight leader of the 4th Fighter Squadron (Sky Kid Squadron); he is one of Talisman's allies in Ace Combat 6: Fires of Liberation. His signature aircraft is the Mirage 2000-5.
He was well-known for his superior flight skills which resulted in him being seen as a model pilot. It is said his sense of humor helped his fellow allies get through the Emmeria-Estovakia War.
During the early stages of the Emmeria-Estovakia War he was taking part in the Standoff in Silvat Town. He also assisted the Garuda team in protecting the tanks in Selumna Peak, taking back Ragno Fortress, clearing a path in Moloch Desert, saving Garuda team from the huge fighter battalion, recapturing Gracemeria and protecting it from cruise missiles, as well as helping destroy the Chandelier and the P-1112 Aigaion.
- Stephen McCarthy's callsign is a reference to Sky Kid, a notable Namco title.
- Red Baron and Blue Max are seen accompanying Stephen, which are also Sky Kid references since Red Baron and Blue Max were playable characters in that game.