I was sitting across from a young podcast host recently, and he asked me something that caught me off guard.

He didn’t ask about the series finale or the politics of the war.

He asked, “Who was the hardest person to keep a straight face around?”

Without even thinking, I felt this giant grin spread across my face.

The memories started flooding back, and suddenly I wasn’t in a high-tech recording studio anymore.

I was back in the dust of Malibu, standing in that cramped, sweltering mess tent.

It’s funny how a single question can transport you back forty years.

I told him that people always expected us to be these disciplined, serious actors because the show dealt with such heavy themes.

But the truth is, the heavier the scene, the more we needed to find a way to crack.

And nobody—absolutely nobody—was more dangerous to your professional composure than Harry Morgan.

When Harry first joined the cast as Colonel Potter, we were all a bit intimidated.

He was a pro’s pro. He had been in more movies than most of us had seen.

We thought he was going to be the “adult” in the room after McLean Stevenson left.

We thought he would be the one to keep us in line when our late-night filming sessions turned into a circus.

But we were so wrong.

Harry had this “twinkle” in his eye that should have come with a warning label.

We were filming a scene late in the afternoon, one of those days where the heat just sits on your shoulders like a heavy blanket.

It was a standard briefing scene in Potter’s office.

The script was straightforward, nothing particularly funny on the page.

I had a long speech, and Harry just had to sit there, look stern, and offer a classic Potter-ism at the end.

But as we were setting up the lights, I noticed Harry was being unusually quiet.

He was just staring at me with this very specific, blank expression.

The director called for silence, the cameras started rolling, and I began my lines.

I was doing my best “earnest Hawkeye” performance, really leaning into the drama of the moment.

I looked over at Harry for his reaction, and I saw his lip give this tiny, almost imperceptible twitch.

I knew right then that I was in trouble.

The line Harry had to deliver was supposed to be a stern dismissal of my character’s complaints.

He was supposed to look me in the eye and tell me to get back to work.

But when the camera punched in for his close-up, Harry didn’t just deliver the line.

He leaned forward, paused for an agonizingly long three seconds, and then let out this high-pitched, nasal “Hee-hee!”

It was a sound that didn’t belong to Colonel Potter, or to any human being for that matter.

Then, with a completely straight face, he followed it up by crossing his eyes just enough so that only I could see it, while the camera stayed focused on his profile.

I didn’t just laugh. I imploded.

I think I actually went weak at the knees and had to grab the edge of the desk.

The director, who was already frustrated with the fading light, yelled, “Cut! Alan, what are you doing?”

I couldn’t even answer. I was pointing at Harry, but Harry was sitting there looking like a Victorian schoolmaster.

He looked at the director with total innocence and said, “I don’t know what’s wrong with the boy, Burt. I think the heat has finally gotten to him.”

The crew started resetting, and I spent five minutes doing deep breathing exercises, trying to find my center.

We went for Take Two.

I got through my speech again, heart pounding, determined to be a professional.

I looked at Harry. He stayed perfectly still.

I thought, “Okay, he’s done. He got it out of his system.”

But just as he was about to speak his line, he reached into his desk drawer, pulled out a single tongue depressor, and stuck it into his mouth like a cigar while wiggling his ears.

That was the end of Take Two, and it was also the end of any hope for productivity that afternoon.

The cameras stopped, but the laughter didn’t.

It started with me, then the script supervisor lost it, and then Mike Farrell, who was standing just off-camera, started howling.

The funniest part about a “corpsing” incident on a set like ours is the ripple effect.

Once the actors go, the crew is usually right behind them.

The camera operator was laughing so hard the lens was literally shaking on the tripod.

We tried to go for Take Three, then Take Four, then Take Five.

Every single time, Harry would do something slightly different, but equally absurd.

He had this incredible ability to stay in character while doing the most ridiculous things.

He would deliver a line about “mule biscuits” or “horse hockey,” but he’d do it with a rhythmic cadence that sounded like he was trying to summon a ghost.

By the tenth take, the director had given up on being angry.

He was sitting in his chair with his head in his hands, just shaking with silent laughter.

The “stern” Colonel Potter had completely dismantled the entire production of one of the most successful shows on television.

It became this legendary moment because it reminded us that we weren’t just colleagues; we were a family that truly enjoyed each other’s company.

Harry eventually settled down and gave us the perfect take, but only after he knew he had thoroughly broken every person in that room.

He had this mischievous spirit that kept us alive through the long hours and the difficult locations.

I remember walking away from the set that day with my ribs actually aching from the effort of laughing so hard.

It’s those moments—the ones that never made it into the final edit—that stay with you the longest.

They weren’t in the script, they weren’t planned, and they certainly didn’t help the budget.

But they were the glue that held us together for eleven years.

Whenever I see a rerun of those office scenes now, I don’t see the dialogue.

I see the twinkle in Harry’s eye, and I remember exactly how hard I had to fight to keep from falling on the floor.

That’s the thing about great comedy; it’s usually born out of the moments when you’re trying the hardest to be serious.

We were a show about a war, but we were fueled by a deep, irreverent joy that Harry Morgan embodied more than anyone else.

He taught us that if you can’t find a reason to laugh when the cameras are rolling, you’re probably in the wrong business.

Who is the one person in your life who can make you lose your composure with just a single look?