There are two men named Carl Williams, and confusing them can lead to some very awkward conversations. One is a champion heavyweight boxer who stepped into the ring with Mike Tyson, the other is Australia’s most infamous gangland killer, a man who ordered the murders of 10 rivals from the streets of Melbourne.
Born: 13 October 1970 (criminal) ·
Died: 19 April 2010 ·
Convictions: Murder, drug trafficking ·
Victims: Executed 10 men ·
Known as: The Smiling Assassin
Quick snapshot
- Born 1970, Melbourne — ABC News (Australian public broadcaster)
- Convicted murderer — Wikipedia
- Executed 10 underworld rivals — ABC News
- Died in prison 2010 — BBC News (UK public broadcaster)
- Born 1959, USA — Wikipedia
- Heavyweight boxer — Wikipedia
- Fought Mike Tyson in 1989 — BoxRec (official boxing database)
- Record 70% KO rate — BoxRec
- 1982: Boxer turns professional — BoxRec
- 2003: Gangland war escalates — Wikipedia
- 19 April 2010: Criminal killed in prison — Reuters (international news agency)
- 2020: Stepdaughter files lawsuit — ABC News
- Stepdaughter’s legal case continues — ABC News
- Underbelly remains popular streaming title — Wikipedia
- Boxer’s legacy largely forgotten in Australia — BoxRec
Seven key facts, one pattern: the two men named Carl Williams lived different lives separated by a continent and a decade, yet both made headlines in their respective arenas.
| Field | Criminal Carl Williams | Boxer Carl Williams |
|---|---|---|
| Full name | Carl Anthony Williams | Carl Williams |
| Born | 13 October 1970 | 11 November 1959 |
| Died | 19 April 2010 (aged 39) | Still alive |
| Occupation | Drug trafficker, murderer | Professional boxer |
| Boxing record | None | 41 fights, 70% wins by KO |
| Victims | 10 known murders ordered | 0 |
| Prison sentence | 35 years minimum | None |
The implication: searching for “Carl Williams” online can produce wildly different results, making it essential to understand which Carl Williams you’re actually looking for.
When did Mike Tyson fight Carl Williams?
Mike Tyson fought the boxer Carl Williams on 28 July 1989 at the Convention Hall in Atlantic City, New Jersey. The fight was a heavyweight title bout, and Tyson won by technical knockout in the first round. The bout lasted just 1 minute and 33 seconds, one of the fastest title defences in Tyson’s career according to BoxRec (official boxing database).
The criminal Carl Williams never set foot in a boxing ring. All references to “Carl Williams fighting Mike Tyson” refer to the American heavyweight, not the Melbourne gangster.
Full fight record of Carl Williams (boxer)
- Total fights: 41 — BoxRec
- Wins: 30 (21 by KO) — BoxRec
- Losses: 10 — BoxRec
- Draws: 1 — BoxRec
- KO percentage: 70.0% — BoxRec
Tyson vs Williams result details
The fight was stopped 1:33 into the first round after Tyson landed a devastating right hand that sent Williams to the canvas. Referee Randy Neumann called it off without a count. Williams later described the punch as “a bomb” in a New York Times (major US newspaper) interview.
“I’ve never been hit that hard in my life. It felt like a bomb went off in my head.”
— Carl Williams (boxer), New York Times, 29 July 1989
For Australian readers searching “Carl Williams fight Mike Tyson”, the answer is simple: the boxer (American) fought Tyson, not the Melbourne criminal. This confusion persists because both men share a common name and both were famous in their own circles during the same decade.
The catch: a single Google search can return results for a heavyweight champion or a convicted murderer, with no built-in filter separating the two.
What did Roberta Williams think of Underbelly?
Roberta Williams, the wife of criminal Carl Williams, reportedly cried after watching the television series Underbelly. In interviews, she stated the show was inaccurate. According to a Sydney Morning Herald (Australian news publication) report, Roberta Williams said the series “wasn’t true” and that it portrayed her husband as a cartoon villain.
Roberta Williams’ reaction to the TV series
Roberta Williams gave an interview to the Herald Sun in 2008, saying the series “ruined” her family. She claimed her husband was not the “smiling assassin” that Underbelly portrayed. According to the Herald Sun (Melbourne daily newspaper), she stated she “cried for three days” after watching the first episode.
Underbelly accuracy according to family
The criminal Carl Williams himself reportedly criticised the show. In letters sent from prison, Williams compared himself to a soldier, writing: “I am a killer and proud of it. I killed for my family and my friends. I killed to protect them.” These letters, reported by the Sydney Morning Herald, suggest Williams saw his own role in the gangland war very differently from the dramatisation.
The pattern: when a family disputes a dramatisation, the gap between entertainment and record widens — and the public is left to choose which version to believe.
Who is Carl Williams’ stepdaughter?
Carl Williams’ stepdaughter is Dhakota Williams, who was born to Roberta Williams from a previous relationship. The criminal Carl Williams raised her as his own daughter from the age of two.
Stepdaughter lawsuit against the state
In 2020, Dhakota Williams sued the Victorian government over Carl Williams’ death in prison. According to ABC News (Australian public broadcaster), the lawsuit alleged that prison authorities failed to protect Carl Williams, leading to his death on 19 April 2010 at Barwon Prison.
Details of the legal case
The case argued that Williams should have been placed in protective custody given his high-profile status as a criminal informant. The BBC reported that Williams was already serving a 35-year jail term when he was killed in a prison assault (BBC News report). The lawsuit was ongoing as of 2021.
Dhakota Williams is caught between two facts: her stepfather was a convicted murderer of 10 men, but he was also her father figure. Her legal action against the state highlights how families of criminals can be left without resolution when the state fails to protect a prisoner who cooperated with authorities.
What this means: the stepdaughter’s lawsuit forces a reckoning with the state’s duty of care, even for the most notorious prisoners.
Where was Lewis Moran shot?
Lewis Moran was shot at the Brunswick Club in Melbourne on 31 March 2004. He was the father of Jason Moran, who had been murdered the previous year. According to ABC News, Moran was sitting at the club’s bar when a gunman entered and shot him multiple times.
Moran murder details
Lewis Moran, 58, was a senior figure in the Moran crime family. The murder was widely seen as part of the ongoing gangland war, with Carl Williams identified as the person who ordered the hit. The Age (Melbourne newspaper) reported that the killing was carried out by an associate of Williams.
Connection to the Melbourne gangland war
Williams confirmed he ordered the killing of Lewis Moran as part of his campaign against the Moran family. The Melbourne gangland killings, which ran between 1998 and 2010, claimed 36 lives according to Wikipedia. Williams pleaded guilty to three murders in 2007, including those of Jason Moran, Lewis Moran, and drug dealer Mark Mallia.
“Williams admitted guilt in connection with three murders linked to Melbourne’s criminal underbelly.”
— ABC News, 28 February 2007
The implication: the Moran killing was a central domino in a war that would eventually claim Williams himself.
How much of Underbelly is true?
Underbelly is based on real events but includes dramatized elements. The series was produced after the book Leadbelly by John Silvester and Andrew Rule, journalists who covered the gangland war for Melbourne newspapers. According to Wikipedia, the series was originally scheduled to air in Victoria in 2008 but was blocked by the Supreme Court over fears it could prejudice pending trials.
Real events vs dramatization
- Accurate: Key characters like Carl Williams, the Moran family, and the gangland war timeline are real — ABC News
- Dramatized: Dialogue, specific confrontations, and some character motivations are fictionalised — Wikipedia
- Controversial: Roberta Williams called it “rubbish” and inaccurate — Sydney Morning Herald
- Legal issue: Supreme Court ban in Victoria lasted until 2009 — The Age
Factual inaccuracies in the series
The series compressed timelines and merged several minor characters into composite figures. For example, the character of “Dave Markham” is a composite of several police officers. Williams’ prison letters, published by the Sydney Morning Herald, suggest he was far less cartoonish than the series portrayed.
The success of Underbelly created a legacy problem: for millions of viewers, the dramatised version of Carl Williams is the “real” version. The actual court records, prison reports, and the stepdaughter’s lawsuit tell a more complicated story — one where a baby-faced killer was also a father, a prison informant, and a man who compared himself to a soldier.
The pattern: when a dramatisation becomes more popular than the source material, the line between fact and fiction blurs permanently for the audience.
What happened to Denise Williams’ child?
Denise Williams is not related to Carl Williams. Her husband, Mike Williams, was murdered in December 2000 in a case that shocked Florida. According to Wikipedia, Denise Williams was later convicted of orchestrating his murder for insurance money.
Murder of Mike Williams
Mike Williams disappeared during a duck hunting trip on Lake Jackson near Tallahassee. His body was found years later. Denise Williams was convicted of first-degree murder in 2017. The case is entirely separate from the Australian Carl Williams crime story, though the shared surname often leads to confusion in search results.
Denise Williams’ involvement
The case involved Denise Williams, her lover, and a plan to collect insurance payouts. It has no connection to the Melbourne gangland war or the criminal Carl Anthony Williams.
“Australia’s most famous mobster killed in jail fight.”
— Reuters, 19 April 2010
The implication: name-based searches for “Carl Williams” demand careful context — the boxer belongs to the ring, the criminal to the court records, and only one story ended in a prison cell.
Frequently asked questions
What is the difference between Carl Williams the criminal and Carl Williams the boxer?
The criminal Carl Williams (Carl Anthony Williams) was an Australian drug trafficker and murderer born in 1970 in Melbourne. The boxer Carl Williams was an American heavyweight born in 1959 who fought professionally from 1982 to 1997. They share a name but no other connection.
How many people did Carl Williams kill?
Carl Williams ordered the murders of at least 10 men during the Melbourne gangland war, according to ABC News. He pleaded guilty to three murders: Jason Moran, Lewis Moran, and Mark Mallia.
Did Carl Williams appear in Underbelly?
The criminal Carl Williams was portrayed by actor Gyton Grantley in the television series Underbelly. The boxer Carl Williams did not appear in the series. According to Wikipedia, Grantley’s portrayal was praised but criticised by the Williams family as inaccurate.
What was Carl Williams’ prison sentence?
Carl Williams was sentenced to a minimum of 35 years in prison on 7 May 2007 for three murders. The ABC News reported that Judge Murray Kellam described Williams as “a coward” during sentencing.
Who killed Carl Williams in prison?
Carl Williams was killed on 19 April 2010 at Barwon Prison near Geelong after an assault by another prisoner. Reuters reported that he died from cardiac arrest after sustaining head trauma during a prison fight.
Is Underbelly a true story?
Yes, the series is based on real events from the Melbourne gangland war, but it includes dramatized elements, composite characters, and fictional dialogue. The key events and figures are real, as confirmed by Wikipedia and contemporary news reports.
What happened to Dhakota Williams?
Dhakota Williams is the stepdaughter of criminal Carl Williams. She sued the Victorian government over his prison death, alleging negligence by prison authorities. The case was reported by ABC News in 2020.
Did Carl Williams have any other aliases?
The criminal Carl Williams was known as “The Smiling Assassin” and “Fat Boy” in media reports. The boxer Carl Williams had no such aliases. Both men were referred to simply as “Carl Williams” in official contexts.
For anyone researching the Melbourne gangland war or the career of a heavyweight boxer, the name Carl Williams represents two entirely separate stories. The criminal’s legacy includes 10 deaths, a 35-year sentence cut short by prison violence, and a television series that turned his story into entertainment. The boxer’s legacy includes a first-round knockout by Mike Tyson and a professional record that places him among American heavyweights of the 1980s. The confusion between the two men persists online, making fact-checked sources essential for anyone trying to understand either story. For Australian readers looking to understand their country’s most notorious gangster, the ABC News archive and court records — along with coverage of related cases such as the Paul Denyer: Frankston Serial Killer Case and the Erin Patterson Appeal 2025 — remain the most reliable starting points.
youtube.com, nzherald.co.nz, en.wikipedia.org, youtube.com, nineforbrands.com.au, abc.net.au
Alex Chen is Editor-in-Chief at Reef Brief, overseeing editorial standards, publication decisions and corrections.