Glenn Howerton has spent two decades making audiences half-laugh, half-flinch as Dennis Reynolds, the self-appointed “golden god” of It’s Always Sunny in Philadelphia. The man behind the character is not the character: Howerton trained at Juilliard, co-created the show with Charlie Day and Rob McElhenney, and picked up a 2023 acting award for playing BlackBerry executive Jim Balsillie — the gap between actor and role that explains most of the confusion online.

Born: April 13, 1976 ·
Known for: Dennis Reynolds in It’s Always Sunny in Philadelphia ·
Wife: Jill Latiano ·
Height: 5 ft 11 in (1.80 m) ·
Notable film: BlackBerry (2023)

Quick snapshot

1Confirmed facts
2What’s unclear
3Timeline signal
  • 2005: It’s Always Sunny in Philadelphia premieres (Apple TV (streaming profile))
  • 2018: A.P. Bio debuts while Sunny continues
  • 2023: BlackBerry brings Howerton a Best Supporting Actor award (Vanity Fair (entertainment magazine))
4What’s next

Half a dozen facts settle most Glenn Howerton arguments; everything else blurs into fan theories and character confusion.

Field Value
Full name Glenn Franklin Howerton III
Born April 13, 1976
Birthplace Okinawa, Japan
Height 5 ft 11 in (1.80 m)
Known for Dennis Reynolds in It’s Always Sunny in Philadelphia
Spouse Jill Latiano

What is Glenn Howerton’s illness?

There is no confirmed illness on the public record. Vanity Fair’s 2023 profile of Howerton — timed to the BlackBerry awards push — documents no medical condition (Vanity Fair (entertainment magazine)). The rumor persists for a simpler reason than most people expect: Dennis Reynolds is a fictional character written as narcissistic, calculating, and exploitative (Disney+ (official streaming platform)), and viewers sometimes file that behavior under the actor’s life.

Is Glenn Howerton a smoker?

  • No public interview or profile in our research confirms that Howerton smokes.
  • Dennis’s onscreen puffing and huffing is scripted behavior from a fictional character, not a lifestyle document (Disney+ (official streaming platform)).

One biography entry lists a 2023 ADHD diagnosis that Howerton has not confirmed in any primary interview. Until he addresses it directly, that line belongs in the rumor column, not the medical record.

The catch

The same actor fans wonder about won a 2023 Best Supporting Actor award for BlackBerry — a reminder that intense character work is a job, not a symptom.

The implication: when an actor plays a personality-disordered character for 16 seasons, the internet will eventually try to diagnose him. The evidence trail for that diagnosis is empty.

Did Glenn Howerton try to leave It’s Always Sunny?

Howerton did not permanently leave the show, but he came closer than fans realized. He feared the series had peaked and felt professionally boxed in; co-creator Rob McElhenney has said Howerton tried to leave several times before being written back into the story (The Independent (news publication)).

Why did Dennis leave Sunny?

  • Dennis’s reduced presence in Season 13 coincided with Howerton’s lead role on A.P. Bio; the absence was a scheduling and production decision, not a character exit.
  • The character returned to the gang, and Howerton continues to play Dennis Reynolds.

Why did they replace Dee on Always Sunny?

  • They didn’t. Kaitlin Olson has played Dee in every aired season, and no recast has ever been announced.
  • The confusion usually comes from jokes about the cast being interchangeable, which the show treats as comedy, not casting news.
Why this matters

A show that nearly lost its co-creator is still running, and Howerton is still on the call sheet — the contract drama was a chapter, not the ending.

The pattern: actors test exits when a show passes its peak; the ones who stay are the ones who remember they helped build it. Howerton co-created Sunny, so leaving was never as simple as quitting a job.

Was Glenn Howerton’s wife in Always Sunny?

His wife is actress Jill Latiano. Howerton married Latiano in 2009, according to Wikipedia’s biographical entry. She has also appeared in It’s Always Sunny in Philadelphia — a cameo, not a main-cast role (IMDb (filmography database)).

Who is Glenn Howerton’s wife?

  • Jill Latiano is an actress known for TV comedy work; she and Howerton have two children together.
  • The couple keeps their personal life low-key, which is why so many Sunny fans discover Latiano only through trivia pages.

When did Glenn Howerton and Jill Latiano marry?

  • 2009 — the same year Sunny was still building the audience that later made Dennis Reynolds a meme.

What this means: the “wife in Sunny” question is really a fandom question in disguise. Yes, she is in an episode, but she is not part of the main cast, and calling her a recurring character would oversell it.

Is Glenn Howerton Japanese?

No. Howerton was born in Okinawa, Japan, to American parents, grew up in the United States, and trained at Juilliard’s Drama Division before his TV career took off (Wikipedia (biographical reference)).

Where was Glenn Howerton born?

  • Okinawa, Japan — where his American parents were living at the time of his birth on April 13, 1976.
  • He holds American nationality, not Japanese citizenship.

What were Glenn Howerton’s early acting roles?

  • He co-created It’s Always Sunny with Charlie Day and Rob McElhenney, which turned into his defining role (Apple TV (streaming profile)).
  • Before that, his path was serious stage training rather than sitcom stardom.
Why this matters

The BlackBerry chapter (Sharp Magazine (culture publication)) proved Howerton could carry a drama, not just a bar — the kind of range that makes actor-versus-character questions worth asking.

The pattern: “Is he Japanese?” is a birthplace question with a citizenship answer. Okinawa explains where he started; Sunny and BlackBerry explain who he became.

Who is the most popular character in Always Sunny?

There is no official “most popular” ranking from the show’s producers. Fan discussions consistently land on Charlie and Dennis, which is a useful coincidence: Dennis is the character people search, and Charlie is the one people quote.

Who is the funniest character in It’s Always Sunny?

  • Fan threads tend to split between Charlie Day’s high-pitched chaos and Howerton’s controlled menace; there’s no objective winner.
  • Dennis is often called the funniest because his self-seriousness is the joke — the character believes he is a golden god, and the show never lets him win.

Who is older, Dee or Dennis?

  • Neither: Dee and Dennis are fraternal twins, so they share the same birthday.

Does Dennis wear a wig in Always Sunny?

  • No: the show never establishes a wig for Dennis in normal continuity; hair jokes are character insults, not plot points.

What is the highest rated Always Sunny episode?

  • IMDb’s community ratings rank Season 13’s “Mac Finds His Pride” at the top (IMDb (filmography database)).
The trade-off

The more beloved Dennis becomes, the harder it is for Howerton to escape him — the same reason he considered leaving the show, and the same reason BlackBerry mattered as a proof-of-range moment.

What this means: “most popular” is a fan question, not a fact question. The deeper pattern is that the most un-replaceable characters are the ones whose actors helped invent them.

TL;DR: Charlie and Dennis dominate fan polls, but Howerton remains behind the golden god — and episode-ranking trivia does not change the actor’s career.

Glenn Howerton career timeline

Timeline highlights from the sources cited above:

  • — Born in Okinawa, Japan.
  • — It’s Always Sunny in Philadelphia premieres.
  • — Marries Jill Latiano.
  • — A.P. Bio debuts.
  • — BlackBerry premieres; Howerton wins Best Supporting Actor from the North Texas Film Critics Association.
  • — It’s Always Sunny season 17 is announced.

The shape of that timeline is the real story: nearly every era of Howerton’s career circles back to the show he co-created. Even the BlackBerry detour was a break, not a departure.

Confirmed facts vs. what’s still open

Confirmed facts

  • Glenn Howerton was born April 13, 1976, in Okinawa, Japan.
  • He is married to Jill Latiano and has two children.
  • He has played Dennis Reynolds since It’s Always Sunny premiered in 2005.
  • Kaitlin Olson has never been replaced as Dee.

What’s unclear

  • Whether Howerton has any medical condition.
  • Whether Howerton smokes.
  • Howerton’s exact net worth.
  • A 2023 ADHD mention in one biography that Howerton hasn’t confirmed.

The editorial read: the confirmed column is built on documents, interviews, and credits; the unclear column is where the search-traffic rumors live until someone provides a primary source. For the record, sources for each item are linked in the sections above.

What the sources say

Dennis Reynolds is a fictional character and should not be used as evidence about Howerton’s health or personality.

Disney+ (official streaming platform)

Howerton had tried to leave the show on several occasions but was repeatedly written back into the story until he agreed to return.

The Independent (news publication), reporting Rob McElhenney’s account

BlackBerry dramatizes the rise and fall of the smartphone company associated with Research in Motion.

Sharp Magazine (culture publication)

The read: the loudest voices about Howerton are usually describing Dennis. The quiet ones are describing a Juilliard-trained actor with a drama career.

The takeaway

Glenn Howerton spent 16 seasons turning Dennis Reynolds into television’s most entertaining red flag, and the confusion between actor and character is unlikely to fade while the show keeps running. For viewers who only know him from Sunny, the next move is to watch BlackBerry and see what “the golden god” looks like without a laugh track — and for anyone searching his name before Season 17, the choice is clear: check the source, not the fan theory, or you will keep diagnosing Howerton, a man who is simply working.

Additional sources

the-independent.com, tv.apple.com

Frequently asked questions

How tall is Glenn Howerton?

5 ft 11 in (1.80 m), per the biographical listing used in the key facts table above.

What is Glenn Howerton’s net worth?

No reliable public figure exists. Celebrity-wealth estimates vary widely and none are tied to a confirmed financial disclosure.

Did Glenn Howerton win an award for BlackBerry?

Yes. The North Texas Film Critics Association named him Best Supporting Actor for BlackBerry in 2023.

Is Glenn Howerton in the BlackBerry movie?

Yes. He plays Jim Balsillie, opposite Jay Baruchel as Mike Lazaridis.

What was Glenn Howerton’s role in A.P. Bio?

He played Jack Griffin, a disgraced academic forced to teach high-school biology at a Toledo high school.

Will Glenn Howerton return for It’s Always Sunny season 17?

All signs point to yes: the show has been renewed for Season 17, and Howerton remains attached as co-creator and star.

Is Glenn Howerton married?

Yes. He and actress Jill Latiano have been married since 2009 and have two children.

The most-searched Howerton questions tend to be about Dennis; the answers that matter are about Howerton.