For over a decade, Brian Jordan Alvarez has been bootstrapping his way across platforms and screens big and small, collecting fans and followers.

In the early days, he starred with friends in short comedic sketches he posted on YouTube. Then in 2016, on a paltry budget of around $10,000, he created “The Gay and Wondrous Life of Caleb Gallo,” a five-part comedy web series about a misfit group of queer friends in Los Angeles. Alvarez wrote and directed it, and starred as the title character.

“Caleb Gallo” quickly found an audience. It was shown at the Tribeca Film Festival that year, earned a Gotham Award nomination and topped IndieWire’s list of best web series of 2016, edging out Jerry Seinfeld’s “Comedians in Cars Getting Coffee.” The next year, Alvarez landed a recurring role in the three-season revival of “Will & Grace,” as the fiancé, then husband, of Jack McFarland (Sean Hayes).

In 2023 he leveled up again, starring alongside Allison Williams in the horror comedy box office smash “M3gan” and reaching new heights of virality with a stable of absurdist face-filtered characters. The most famous of them, the bug-eyed, duck-lipped pop star TJ Mack, delighted millions on TikTok and Instagram with the earworm “Sitting” (pronounced “Sittim”).

Now Alvarez is taking another major leap: “English Teacher,” a feel-good sitcom with an edge that he created and stars in, debuts on FX on Sept. 2.