History in the GTA Series
Costumes entered GTA in GTA Vice City, where Tommy could wear a police uniform during the mission 'Cop Land' to infiltrate a station. The disguise idea proved popular enough that GTA San Andreas expanded it — CJ could find and wear police, paramedic and other outfits from wardrobe pickups across the map. Later games offered varying degrees of costume variety, with GTA Online adding extensive themed and holiday outfits over time.
So 'dressing up' — sometimes for mission utility, sometimes purely for fun — is a genuine, long-running part of the series.
What Is Known for GTA 6
Rockstar has not confirmed any GTA 6 costume system, disguise mechanic, or outfit list. Whether disguises play a gameplay role is unknown. Specifics seen elsewhere are speculation.
Frequently Asked Questions
When did disguises first appear in GTA?
In GTA Vice City, with the police-uniform disguise in the 'Cop Land' mission, then expanded in GTA San Andreas.
Are costume disguises confirmed for GTA 6?
No. Rockstar has not confirmed a costume or disguise system for GTA 6.