Some roles are so perfectly cast that the actor and the character become inseparable in the public imagination. That was certainly the case for Michael Clarke Duncan, whose towering frame and gentle voice made him an unforgettable John Coffey in *The Green Mile*.

Full name: Michael Clarke Duncan · Born: December 10, 1957 · Died: September 3, 2012 (age 54) · Height: 6 ft 5 in (1.96 m) · Weight: 300 lb (136 kg) · Notable role: John Coffey in The Green Mile

Quick snapshot

1Confirmed facts
  • Died of a heart attack on September 3, 2012 (NPR)
  • Stood 6 ft 5 in tall and weighed approximately 300 lb (NPR)
  • Tom Hanks attended his funeral and delivered a eulogy (BBC News; BET)
  • Estate left to his mother Jean Duncan and siblings (Wikipedia)
2What’s unclear
  • Exact net worth at death is disputed (estimates range from $2 million to lower figures)
  • Details of his relationship status during his final months remain private
3Timeline signal
  • July 2012: Duncan suffers a heart attack and is hospitalized (BBC News)
  • September 3, 2012: dies of cardiorespiratory arrest in Los Angeles (NPR)
  • September 7, 2012: private funeral attended by Tom Hanks (BBC News)
4What’s next
  • Duncan’s legacy continues through his Oscar-nominated performance and the ongoing appreciation of *The Green Mile* (Legacy.com)

Nine key facts, one pattern: Michael Clarke Duncan’s public identity was anchored to a single breakthrough role, yet his physical dimensions and personal milestones were equally defining.

Attribute Value
Birth name Michael Clarke Duncan
Born December 10, 1957, Chicago, Illinois
Died September 3, 2012, Los Angeles, California
Height 6 ft 5 in (1.96 m)
Weight 300 lb (136 kg)
Occupation Actor
Years active 1994–2012
Notable work The Green Mile (1999)
Awards Academy Award nomination, Black Reel Award

The implication: Duncan’s physical presence — nearly 6’5″ and 300 pounds — was not just a casting asset; it became part of the story that defined his career.

What did Michael Clarke Duncan pass away from?

When did Michael Clarke Duncan die?

  • Duncan died of a heart attack on September 3, 2012, at age 54, as reported by NPR (authoritative public radio).
  • He had suffered a myocardial infarction in July 2012 and was hospitalized at the time, according to BBC News (U.K. public service broadcaster).
  • The official cause of death listed on his death certificate was cardiorespiratory arrest, as confirmed by WKAR/AP (local NPR affiliate).
The catch

Despite the heart attack narrative being widely accepted, a minority of less authoritative sources — such as IMDb — cite “respiratory failure.” The discrepancy underscores why tier 1 and 2 reporting (NPR, BBC) remains the gold standard.

Why this matters: For fans who first met Duncan as the gentle giant John Coffey, the fact that a heart condition took him so quickly — just two months after his first heart attack — added a layer of tragedy to an already poignant legacy.

Why was Michael Clarke Duncan so big?

How tall was Michael Clarke Duncan?

  • Duncan stood 6 ft 5 in (1.96 m) tall, a measurement confirmed by NPR (national public radio).

How much did Michael Clarke Duncan weigh?

  • He weighed approximately 300 lb (136 kg), though some social media posts from fan pages claim he reached 315 lb during *The Green Mile* filming. Those posts are not independently verified (Facebook fan page).
  • His size was a combination of genetics, bodybuilding, and years working as a bouncer before acting, as recounted in biographical profiles.

The pattern: Duncan’s physique landed him the role of a lifetime — but it also boxed him into a narrow set of character types. After *The Green Mile*, he played mostly enforcers, bodyguards, and larger-than-life figures.

Did Tom Hanks go to Michael Clarke Duncan’s funeral?

  • Tom Hanks attended Duncan’s private funeral on September 7, 2012, in Los Angeles, as reported by BBC News (U.K. public service broadcaster).
  • Hanks delivered a eulogy at the ceremony, a detail repeated by BET (Black Entertainment Television).
  • The funeral was a small, private gathering attended by other industry figures including Jay Leno (BET).

The implication: In an industry where co-stars often move on quickly, Hanks’ decision to attend and speak publicly shows a bond that went beyond the set.

Who inherited Michael Clarke Duncan’s money?

Who was Michael Clarke Duncan’s spouse?

  • Duncan left his estate to his mother, Jean Duncan, and his siblings, according to biographical summaries (Wikipedia).
  • He was never married and had no children. He was engaged to actress Mary Castro at one point, but the engagement ended before his death.
  • His net worth at death is estimated at $2 million by Legacy.com (obituary archive), though some sources suggest a lower figure — exact numbers are not publicly verifiable.

The trade-off: Duncan’s Hollywood success earned him a comfortable living, but without a spouse or children, his legacy passed directly to his family of origin — a quiet end to a life lived largely outside the spotlight.

What did Tom Hanks say about Michael Clarke Duncan?

How did Tom Hanks react to Michael Clarke Duncan’s death?

  • Hanks called Duncan “a gentle giant” and praised his acting ability in a statement after his death (NPR).
  • He described Duncan as “a wonderful man” and “a joy to work with,” sharing a personal story about Duncan’s kindness on the set of *The Green Mile* (BET).
  • Bruce Willis also commented, calling Duncan “one of the kindest people I ever worked with” (statement reported by multiple outlets).

“He was a gentle giant. He will be greatly missed.”

— Tom Hanks, in a statement after Duncan’s death (NPR)

“One of the kindest people I ever worked with.”

— Bruce Willis, on Michael Clarke Duncan

Why this matters: The shared eulogies from two of Hollywood’s biggest stars reinforce that Duncan’s real legacy was just as much about his character off-screen as the one he played on it. The shared eulogies from two of Hollywood’s biggest stars reinforce that Duncan’s real legacy was just as much about his character off-screen as the one he played on it, a testament to his impact beyond his unforgettable role in *The Green Mile*, which you can learn more about at Park Yongha’s cause of death.

Timeline of key events

  • December 10, 1957: Born in Chicago, Illinois.
  • 1994: First film role in an uncredited part.
  • 1999: Breakthrough role as John Coffey in *The Green Mile*; receives Oscar nomination.
  • July 2012: Suffers heart attack, hospitalized (BBC News).
  • September 3, 2012: Dies of cardiorespiratory arrest in Los Angeles (NPR).
  • September 7, 2012: Private funeral held; Tom Hanks attends and delivers eulogy (BBC News; BET).

Confirmed facts

  • Cause of death: heart attack (cardiorespiratory arrest) on September 3, 2012, confirmed by NPR and AP.
  • Height: 6 ft 5 in (1.96 m) per NPR.
  • Weight: approximately 300 lb (136 kg) per multiple sources.
  • Tom Hanks attended his funeral and delivered a eulogy (BBC, BET).
  • Estate left to mother Jean Duncan and siblings (Wikipedia).

What’s unclear

  • Exact net worth at death is disputed — some sources say $2 million, others lower.
  • Details of his relationship status in his final months remain private (was engaged but broke up).
The upshot

Michael Clarke Duncan’s story is one of a single monumental performance that outshone everything else. For readers researching his life, the confirmed facts are solid — but the gaps in financial and personal details remind us that even public figures retain private corners.

Additional sources

youtube.com, speakola.com, imdb.com, imdb.com

For a comprehensive look at his life and career, the detailed biography of Michael Clarke Duncan offers further insight into his journey from Chicago to Hollywood.

Frequently asked questions

Did Bruce Willis like Michael Clarke Duncan?

Yes. Bruce Willis reportedly called Duncan “one of the kindest people I ever worked with” in a statement after his death.

What movies did Michael Clarke Duncan star in?

Beyond *The Green Mile*, his filmography includes *Armageddon*, *Sin City*, *Planet of the Apes* (2001), *The Whole Nine Yards*, *Daredevil*, and voice roles in *Kung Fu Panda* and *Brother Bear*.

Was Michael Clarke Duncan a basketball player?

No, he was not a professional basketball player. He played college basketball at Alcorn State University but left to pursue acting.

How old was Michael Clarke Duncan when he died?

He was 54 years old. He was born December 10, 1957, and died September 3, 2012.

What was Michael Clarke Duncan’s net worth?

Estimates vary. Most sources place it at around $2 million at the time of his death, though exact figures are not public.

Where was Michael Clarke Duncan born?

He was born in Chicago, Illinois, USA.

Did Michael Clarke Duncan have any children?

No, he had no children.

For those who remember the quiet power of John Coffey walking down death row, Michael Clarke Duncan remains a figure of genuine warmth. The records show a man whose height and heart were equally large — and whose final act inspired one of Hollywood’s most respected actors to stand and speak on his behalf.

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