Snowfall | Wednesday, 10 p.m., FX

Franklin Saint (Damson Idris) thought he had it made. A product of the rough streets of South Central LA, he carved out a niche for himself by becoming a drug dealer. As the stakes in the game were raised, he tangled with international criminals and CIA agents, mostly covering his tracks. As the most recent episode of the show revealed, however, Franklin’s fortunes have turned. He shot and killed a cop — his next-­door neighbor and former father figure Andre Wright (Marcus Henderson) — when Wright obtained a file linking Andre to a drug-smuggling operation run by the CIA. Franklin also bears responsibility for the recent crack addiction of Wright’s daughter Melody (Reign Edwards), the harrowing result of Franklin filling his community with drugs. The British-born Idris, 27, spoke to The Post from London, where he was on vacation from filming the movie “Outside the Wire,” which stars Anthony Mackie as a drone pilot tasked with locating a doomsday device in a demilitarized zone.

Why did Franklin shoot Andre after he surrendered the file with evidence against him?

He realized such a secret would be too much of a risk in the hands of Andre. He knew that Andre would have too much leverage over him going forward. But more specifically he shot him because if such information was ever released, it would be completely detrimental not only to Franklin but to the people he loves.

How will this decision affect his future?

Franklin definitely believes his decision will affect his relationship with Melody, because he just killed her dad. It’s going to affect his relationship with law enforcement, more specifically Sgt. Nixon (Jesse Luken), who was Andre’s right­hand man. More importantly it’s going to affect Franklin’s psyche. He’s definitely crossed a line.

Did Franklin just make a fatal error?

I believe Franklin made the right decision. And didn’t make a fatal error. He gave Andre an ultimatum. He gave him an opportunity to run and Andre wouldn’t let that happen. Because of the high stakes and what he has to lose, Franklin had no choice but to take extreme measures. And I’m assuming the audience would see themselves in him and make the same decision.

Melody becomes addicted to crack almost instantly. Is that realistic?

One hundred percent. We spoke about that a lot [on set]. She does it the first time at a party, then at home. You’re constantly trying to chase that first high. And you’ll never get that feeling again. She’s at the stage where she still wants to feel good.

What does your family in London think of you starring in an American series?

They are very proud. I’m the youngest of six kids. I’m an uncle to 14 kids. They all came to the house on my mother’s birthday. It was amazing to have all these people come over and gravitate to me. When they go to school, their friends talk about me: “He plays that big drug dealer.”

And here’s what else to watch this week

Series premiere. Set in the early ‘90s during the crack epidemic in New York, the show tracks the formation of the WuTang Clan — the vision of Bobby Diggs (Ashton Sanders), aka the RZA, who strives to unite a dozen young black men torn between a life in music or a life in crime, eventually becoming an unlikely American success story. With Shameik Moore (above).

The Spy | Friday, Netflix

Series premiere. In the 1960s, Israeli clerk-turned-secret agent Eli Cohen (Sasha Baron Cohen) goes deep undercover inside Syria on a perilous, years-long mission to spy for Mossad. With Noah Emmerich.

Succession | Sunday, 9 p.m., HBO

Roman Roy (Kieran Culkin) begins a training program in the Parks division and is irritated about spending time with “normals.” Logan (Brian Cox) brings Shiv in for a day at Waystar, raising suspicions with Kendall (Jeremy Strong). Connor (Alan Ruck) and Willa (Justine Lupe) attend the funeral of a family friend with a complicated past.

The Righteous Gemstones | Sunday, 10 p.m., HBO

Aimee-Leigh’s (Jennifer Nettles) brother Billy (Walton Goggins, above) returns to the ministry, along with his wife (Valyn Hall). Meanwhile, Jesse (Danny McBride) makes significant progress in naming his blackmailers.

Late Night | Friday, Amazon

Movie premiere. This comedy starring Mindy Kaling and Emma Thompson (above) did not do well at the box office. Perhaps the film, about a talk show host (Thompson) who hires her first female staff writer (Kaling), will fare better in the world of streaming TV.

Mayans M.C. | Tuesday, 10 p.m., FX

Season premiere. The Reyes brothers — Angel (Clayton Cardenas) and EZ (J.D. Pardo) — are at odds with each other and EZ wants to talk to Angel about their mother’s death. Co-starring Danny Pino and Edward James Olmos (above).

Serengeti | Sunday, 8 p.m., Discovery

With the dry season now in full force, Kali and her lion cubs finally enjoy life in the heart of the pride. Bakari the baboon is living in exile but spots the tribe leader bullying his adopted baby. When a huge storm ignites a fire, Bakari returns to save the baby. Meanwhile, the wild dogs are separated from their pups and the black-maned lions are ready to pounce on anything young.