David on “Roseanne.” Leonard on “The Big Bang Theory.” He hasn’t acted since 2019, and almost nobody noticed he was gone.

Nobody threw him a party. Nobody wrote a farewell piece. In 2019 Johnny Galecki finished two jobs, “The Conners” and a movie called “A Dog’s Journey,” and then he simply stopped.

That was seven years ago.

Think about how strange that is for a face that specific. He was in American living rooms for most of two separate decades. If you were watching television in the nineties you knew him as David, the sweet, hangdog kid who wandered into the Conner house and never fully left. If you were watching in the 2010s you knew him as Leonard Hofstadter, the one in the middle of “The Big Bang Theory” holding everybody else’s chaos together.

Two of the most-watched sitcoms of their eras. One man in both of them.

And then, quietly, nothing.

The arithmetic of a life on a soundstage

Galecki was born on 30 April 1975, which makes him 51 now.

He was seventeen when he started on “Roseanne.” Seventeen. He played David there from 1992 to 1997, five seasons, at the exact age most people are worrying about a driver’s test.

Then “The Big Bang Theory,” which premiered on 24 September 2007 and ended on 16 May 2019. Twelve years. Two hundred and seventy-nine episodes. A show taped in front of a live studio audience, meaning that for twelve years a version of his job involved standing on a set on a Tuesday night with a few hundred strangers watching him from bleachers.

Add it up. Roughly seventeen years of his life, spread across two shows, spent doing the same very unusual thing in the same very unusual room.

Then 2019 arrived, the last credits landed, and he went silent. No exit interview. No statement about wanting to spend time with family, no announced hiatus, no “taking a step back to focus on other projects.” He just didn’t take another job. And because he’d never been the kind of famous that generates paparazzi photographs at gas stations, hardly anybody registered the absence.

What he’s coming back for

Here is the part that makes this interesting instead of just another where-are-they-now.

He is not returning to television. There is no streaming revival, no legacy sequel, no reunion special with the old cast on a redressed version of the old set.

He’s doing a play.

“Kowalski,” at Lookingglass Theatre Company in Chicago, running 15 September through 25 October 2026 at The Joan and Paul Theatre on East Pearson Street. It was written by Gregg Ostrin and is directed by Colin Hanlon. Ninety minutes, no intermission, no going back for a second take.

David on "Roseanne." Leonard on "The Big Bang Theory." He hasn't acted since 2019, and almost nobody noticed he was gone.

Galecki is playing Tennessee Williams.

Provincetown, 1947

The play imagines a specific summer. Williams is in Provincetown, Massachusetts, trying to cast a new script of his. The script is called “A Streetcar Named Desire,” and he cannot find his Stanley Kowalski.

A young unknown turns up to read. He is twenty-three years old and his name is Marlon Brando.

Neither of them knows what that meeting is about to do. Williams doesn’t know that the play will define his career. Brando doesn’t know that this audition is the door. They are two people in a room on an ordinary day, and the whole shape of American acting turns on it, and nobody in the room can see it yet.

That is the role Galecki has taken as his first work in seven years. A writer at the moment just before everything changes, played by an actor who has spent seven years off the board.

You can decide for yourself whether that’s a coincidence.

The one thing he did say

He gave a short explanation for the timing, and it’s the closest thing to an account of those seven years that anyone has gotten out of him.

“The planets aligned,” he said. “After seven years of quietly observing life, I finally had something new to bring back to the work.”

Read the middle of that sentence again. Quietly observing life. Not recovering, not regrouping, not waiting for the right offer. Watching. He appears to have treated the silence as the job.

Why Chicago

Because that’s where he started.

Long before the sitcoms, Galecki was a kid performing on Chicago stages. He was six when he first appeared in a play. By seven he was working at the Goodman Theatre. He picked up a Jefferson Citation nomination as a child for “The Member of the Wedding.” All of it happened before most people had ever heard his name.

Lookingglass put it plainly in its own announcement: he “began performing on local stages as a child, and returns home to Chicago for this special presentation.”

Home. That’s the theater’s word, not ours.

No net

Worth sitting with what a stage actually asks of him now.

For seventeen years his craft came with equipment. Multiple cameras. Multiple takes. Editors. A studio audience whose laughter told him in real time whether a line had landed, and a script supervisor to catch him if it hadn’t.

Ninety minutes, no intermission, live, means none of that. If it goes sideways at minute forty, it goes sideways in front of everyone and there is no cutting around it.

He picked the hardest possible way back in, in the city where he learned to do it in the first place, playing a man who is about to change everything and has no idea.

Tickets are for autumn. The doors open on 15 September.

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David on “Roseanne.” Leonard on “The Big Bang Theory.” He hasn’t acted since 2019, and almost nobody noticed he was gone.
A friend drove her past a stretch of Manhattan Beach and pointed. That drive became the novel she published last month.
A friend drove her past a stretch of Manhattan Beach and pointed. That drive became the novel she published last month.