|Marty Jay Williams|
|Appearances||GTA Vice City Stories|
|Full Name||Marty Jay Williams|
|Place of Birth||Vice City|
|Date of Death||1984|
|Home||Trailer Park, Viceport, Vice City|
Louise Cassidy-Williams (ex-wife)|
Mary-Beth Williams (daughter)
Mary-Jo Cassidy (sister in-law)
Phil Cassidy (brother in-law)
|Voiced by||Jim Burke|
Marty's gang dominates a wide range of criminal activities in Vice City's poorer communities, such as loan sharking, prostitution, and protection rackets. Victor Vance works for Marty near the beginning of the game. He is a stereotypical redneck - he has a thick accent, is a drunk, is believed to be inbred, and he verbally and physically abuses his wife, Louise; he is thus the brother-in-law of Phil Cassidy and Mary-Jo Cassidy. Louise eventually attempts to move out, but Marty kidnaps her. Vic tracks him down and kills him before he can get to his hideout. After Marty's death, Vic acquires all of the Trailer Park Mafia's businesses as his own.
Marty is voiced by Jim Burke.
- GTA Vice City Stories
- The missions Vic does for Marty in GTA Vice City Stories resemble the missions Niko does for Vlad in GTA IV: convincing owners of stores to pay protection money. Also note that Vic shows his dislike for Marty just like Niko shows his dislike for Vlad. Both Marty and Vlad are killed by the protagnist early in the game.