Malick is a tough in the Boston slums who tries to block Joel's path in The Quarantine Zone. Tess knows him and sends him back to his seat with a single word.
As Joel and Tess cross the slums toward Robert, Joel tries to pass through a bus and Malick stands up to stop him, asking where he thinks he is going. Joel sizes him up for a fight, but Tess arrives and tells Malick to sit down. He apologizes, says he did not know they were together, and waves Joel through.
The exchange is short, but it tells you how much weight Tess's name carries in the slums and that Malick does not like strangers walking by.
Malick sits inside a bus next to a fistfight where onlookers bet their ration cards. Once he lets Joel through, two artifacts are close by: the Drafting notice lies among papers on the ground straight ahead, between a vendor and a canopy, and the Wanted poster hangs on a bulletin board beside a man and woman leaning on the fence at the end.
Terrance
Terrance is a black market trader in the Boston slums who tries to sell Tess something as she and Joel head to Robert's warehouse in The Quarantine Zone.
Tess Servopoulos
Tess Servopoulos is Joel's smuggling partner in the Boston quarantine zone and your companion through the first two chapters after the prologue. She is the one who talks Joel into taking Marlene's job, and she escorts Ellie with him across downtown Boston toward the Capitol Building.
Ellie Williams
Ellie Williams is the 14-year-old girl Joel is hired to smuggle out of Boston, and your companion for most of The Last of Us Part I. She was bitten weeks earlier and never turned, so the Fireflies believe her immunity could lead to a vaccine. You play as her in the winter chapter and in the Left Behind DLC.
Joel Miller
Joel Miller is the man you play for almost all of The Last of Us Part I. A hardened smuggler in the Boston quarantine zone, he takes a job escorting 14-year-old Ellie out of the city, and the drop-off turns into a year-long trip across the country to find the Fireflies.