We're first introduced to Roscoe, played by Omari Douglas, in a hard hat and building gear. As the show progresses, we watch him leave his difficult family dynamic for London, a place where he begins to explore his sexuality through fashion. Talking to GQ, Douglas explained that "[Roscoe's] coming out, after being locked up for so long" and that "there's a punk influence" to his style.
Roscoe ends up sleeping with a famous politician, played by Stephen Fry, who insults Roscoe ahead of an important meeting with PM Margaret Thatcher. It's at this point that Roscoe abandons Fry to join his friends at the first HIV and AIDS protest. At the end of It's a Sin, we see Roscoe appear at his family home, seemingly to make amends with his father.
Image Source: Channel 4