Mark Harmon on St. Elsewhere.Photo:Jack Hamilton/NBCU Photo Bank/NBCUniversal via Getty

“Up On The Roof” Episode 9 – Pictured: Mark Harmon as Dr. Robert ‘Bobby’ Caldwell

Jack Hamilton/NBCU Photo Bank/NBCUniversal via Getty

Happy Birthday,Mark Harmon! PEOPLE’s former Sexiest Man Alive — and a sexiest man alive to many fans — turns 72 on Sept. 2, 2023.Celebrate with a look back on his life and career, including everything from dreamy throwbacks to sweet quotes about his longtime love and family life.

Happy Birthday,Mark Harmon! PEOPLE’s former Sexiest Man Alive — and a sexiest man alive to many fans — turns 72 on Sept. 2, 2023.

Celebrate with a look back on his life and career, including everything from dreamy throwbacks to sweet quotes about his longtime love and family life.

01of 18Taking a Ride on the Love BoatABC Photo Archives/Disney General Entertainment Content via GettyIn 1979, Harmon sported an oh-so-’70s look while filmingThe Love Boat.Harmon toldVarietyof his early acting days, “In the beginning, if you needed someone to take his shirt off and kiss the pretty girl, that was me. If you needed someone to say, ‘Ma’am, can I see your license?’ and get shot, that was me.”

01of 18

Taking a Ride on the Love Boat

ABC Photo Archives/Disney General Entertainment Content via Getty

LOVE BOAT - “The Wedding: Caroly and Doug’s Story/Peter and Alicia’s Story/Julie’s Story/Buddy and Portia’s Story: Part 2” which aired on September 15, 1979. (Photo by ABC Photo Archives/Disney General Entertainment Content via Getty Images) MARK HARMON;LISA HARTMAN

In 1979, Harmon sported an oh-so-’70s look while filmingThe Love Boat.

Harmon toldVarietyof his early acting days, “In the beginning, if you needed someone to take his shirt off and kiss the pretty girl, that was me. If you needed someone to say, ‘Ma’am, can I see your license?’ and get shot, that was me.”

02of 18To Beard or Not to Beard?Ron Galella/Ron Galella Collection via GettyWho doesn’t love a rugged look? Harmon sported some scruff while at the 1981 Eddie Awards.

02of 18

To Beard or Not to Beard?

Ron Galella/Ron Galella Collection via Getty

Mark Harmon (Photo by Ron Galella/Ron Galella Collection via Getty Images)

Who doesn’t love a rugged look? Harmon sported some scruff while at the 1981 Eddie Awards.

03of 18So DreamyColumbia Pictures Television/GettyHarmon looked dapper while starring in the 1980 miniseriesThe Dream Merchantsalongside Morgan Fairchild.

03of 18

So Dreamy

Columbia Pictures Television/Getty

Mark Harmon looking into the eyes of Morgan Fairchild in a scene from the television movie ‘The Dream Merchants’, 1980. (Photo by Columbia Pictures Television/Getty Images)

Harmon looked dapper while starring in the 1980 miniseriesThe Dream Merchantsalongside Morgan Fairchild.

04of 18

Making History

ST. ELSEWHERE – “Up On The Roof” Episode 9 – Pictured: Mark Harmon as Dr. Robert ‘Bobby’ Caldwell (Photo by Jack Hamilton/NBCU Photo Bank/NBCUniversal via Getty Images via Getty Images)

Harmon toldVarietyof his role, “At the time it was really risky,but years later it was something people talk about and remember. What they were saying about that character was simply not being done at that time.”

05of 18Going SwimminglyBarry King/WireImageIn 1984, Harmon sported a Speedo while competing inBattle of the Network Stars.

05of 18

Going Swimmingly

Barry King/WireImage

Mark Harmon “Battle of the Network Stars”

In 1984, Harmon sported a Speedo while competing inBattle of the Network Stars.

06of 18

Lights, Camera, Action!

TriStar/Getty

Mark Harmon and Michael Schoeffling in a scene from the film ‘Let’s Get Harry’, 1986. (Photo by TriStar/Getty Images)

07of 18The Sexiest Man AliveThat same year, Harmon was namedPEOPLE’s Sexiest Man Alive, and it’s no mystery why he was chosen!

07of 18

The Sexiest Man Alive

People Magazine - Sexiest Man Alive cover 1.27.1986 Mark Harmon

That same year, Harmon was namedPEOPLE’s Sexiest Man Alive, and it’s no mystery why he was chosen!

08of 18Throwing in the TowelAlan Singer/NBC/NBCU Photo Bank/GettyProving he’s up for a challenge, he hostedSaturday Night Livein 1987,showing up for his opening monologuein nothing but a towel.

08of 18

Throwing in the Towel

Alan Singer/NBC/NBCU Photo Bank/Getty

SATURDAY NIGHT LIVE – Episode 18 – Pictured: Mark Harmon during the opening monologue on May 9, 1987 – Photo by: Alan Singer/NBC/NBCU Photo Bank

Proving he’s up for a challenge, he hostedSaturday Night Livein 1987,showing up for his opening monologuein nothing but a towel.

09of 18Strut Your StuffAlan Singer/NBC/NBCU Photo Bank/GettyWhile appearing onSNL,Harmon joked, “It’s been fun doing this show the last week, except for one problem. See, as the week went on, I noticed in every sketch that I was wearing less clothing than everyone else and began to fear I was being used, you know? It’s this problem I’ve had since I won PEOPLE’s Sexiest Man Alive in 1986.”

09of 18

Strut Your Stuff

SATURDAY NIGHT LIVE – Episode 18 – Pictured: Mark Harmon during ‘The Sexiest Man Alive 1986’ skit on May 9, 1987 – Photo by: Alan Singer/NBC/NBCU Photo Bank

While appearing onSNL,Harmon joked, “It’s been fun doing this show the last week, except for one problem. See, as the week went on, I noticed in every sketch that I was wearing less clothing than everyone else and began to fear I was being used, you know? It’s this problem I’ve had since I won PEOPLE’s Sexiest Man Alive in 1986.”

10of 18

To Have and to Hold

Pam Dawber and Mark Harmon

11of 18

Just the Two of Us

Mark Harmon and Pam Dawber (Photo by Ron Galella/Ron Galella Collection via Getty Images)

12of 18Happy TogetherRon Galella/Ron Galella Collection via GettyThe pair welcomed sons Sean and Ty in 1988 and 1992, respectively.

12of 18

Happy Together

Pam Dawber and Mark Harmon during Premiere of “Dr. Dolittle” in New York City, New York, United States. (Photo by Ron Galella/Ron Galella Collection via Getty Images)

The pair welcomed sons Sean and Ty in 1988 and 1992, respectively.

13of 18Legends OnlyNBCU Photo Bank/GettyHarmon starred alongside legendary actress Elizabeth Taylor inSweet Bird of Youthin 1989.

13of 18

Legends Only

NBCU Photo Bank/Getty

SWEET BIRD OF YOUTH – Air Date 10/01/1989 – Pictured: (l-r) Elizabeth Taylor as Alexandra Del Lago, Mark Harmon as Chance Wayne – Photo by: NBCU Photo Bank

Harmon starred alongside legendary actress Elizabeth Taylor inSweet Bird of Youthin 1989.

14of 18Play BallRon Galella/Ron Galella Collection via GettyHarmon played in the 1989 Hollywood All Star Charity Baseball Game (and his look was a total home run).

14of 18

Play Ball

Mark Harmon

Harmon played in the 1989 Hollywood All Star Charity Baseball Game (and his look was a total home run).

15of 18Family FilmTriStar/GettyHarmon acted alongside a young Joshua Jackson (right) and Sarah Wayne (left) in the 1994 movieMagic in the Water.

15of 18

Family Film

Sarah Wayne, Mark Harmon, and Joshua Jackson standing together in a scene from the film ‘Magic In The Water’, 1994. (Photo by TriStar/Getty Images)

Harmon acted alongside a young Joshua Jackson (right) and Sarah Wayne (left) in the 1994 movieMagic in the Water.

16of 18

Cliff Lipson/CBS Photo Archive via Getty

LOS ANGELES - OCTOBER 10: “Once A Hero” - When suspicious activity surrounds the death of a decorated Marine veteran, the NCIS team (Mark Harmon) works to clear his name, on NCIS, scheduled to air on the CBS Television Network. (Photo by Cliff Lipson/CBS Photo Archive via Getty Images)

In 2003, Harmon would begin his time onNCISas Special Agent Leroy Jethro Gibbs, where he remained for 18 seasons beforedeparting the show in October 2021.

17of 18We Mustache You a QuestionMathew Imaging/FilmMagicAre you a big fan of Harmon’s 2006 ‘stache? We definitely are.

17of 18

We Mustache You a Question

Mathew Imaging/FilmMagic

Mark Harmon during 58th Annual Creative Arts Emmy Awards - Red Carpet at The Shrine Auditorium in Los Angeles, California, United States. (Photo by Mathew Imaging/FilmMagic for Academy of Television Arts and Sciences)

Are you a big fan of Harmon’s 2006 ‘stache? We definitely are.

18of 18Suited UpSGranitz/WireImageIn conclusion, the term “silver fox” might have been invented for Mark Harmon. That’s all.

18of 18

Suited Up

SGranitz/WireImage

Mark Harmon

In conclusion, the term “silver fox” might have been invented for Mark Harmon. That’s all.

source: people.com