Hunt made his NRL debut in 2004 and played every game that season, winning the Dally M Rookie of the Year award. In a controversial move, Hunt chose to play for Australia instead of his native New Zealand, citing a lifelong dream of playing for Queensland in State of Origin. After a downturn in 2005, Hunt's 2006 performances resulted in his selection for Queensland and Australia.
In 2000, Hunt made his representative debut with the Under-14 South–East team of the Queensland Rugby League (QRL), in the fullback position. In 2001, he became part of the Under-15 Australian merit side, and, upon seeing him play rugby league, NRL club Brisbane Broncos scout Cyril Connell offered him a scholarship with the club. Hunt accepted the Broncos scholarship and, after strong performance at Souths Acacia Ridge and Sunnybank High School, received a scholarship to the Anglican Church Grammar School (ACGS).
At ACGS, Hunt switched to rugby union and was a dominant figure in the school's team, which played in the Queensland Great Public Schools (GPS) competition. As a fullback, he led his team to an undefeated season in 2003, and he was one of the best players in the GPS competition. While playing rugby union at ACGS, Hunt also played for the Queensland Schoolboys rugby league team against New South Wales, in the position of lock. Along with Anton LaVin, he won the Bob Templeton Trophy for Queensland’s leading schoolboy player.
In 2003, Hunt was selected for the Australian Schoolboys rugby league representative team to tour New Zealand, playing three matches under coach Rod Patison. Hunt scored a try in each game and was named best back of the series. Australian Schoolboys' coaching staff predicted that Hunt was the most likely Australian schoolboy to make a debut in the NRL.
In mid 2003, Craig Young, a recruitment officer for NRL club St. George Illawarra Dragons, saw Hunt play in a schoolboy competition. Young told St. George Illawarra coach Nathan Brown that they should sign him at any cost. Young offered Hunt $80,000 to play for the Wollongong-based Dragons. Despite Young's enthusiasm, Brown hesitated to sign Hunt, unsure whether the club could find a place for him on the team and Hunt continued his scholarship with the Brisbane Broncos.
Hunt described Bennett and Broncos team-mate Darren Lockyer as the greatest influences on his league career. With Lockyer's move from fullback to five-eighth, Hunt had large shoes to fill in the position. Hunt proved to be a success for the Broncos; he played every game in 2004, missing just four minutes in total, and was the team's top try-scorer. Bennett remarked of him that "Karmichael has an attitude just like Darren Lockyer where he can make a mistake and kiss it off and just get on with the game, It's a wonderful quality to have and you'd like every player to have it. A lot of guys dwell on mistakes and it stays with them too long."
Hunt drew criticism for his style of returning the football; upon receiving the ball, he would run straight at opposition players rather than attempting to evade them. As a result, he received several high tackles, causing the Broncos to ask the NRL to protect Hunt by punishing opposition players more severely. The referees' board supported this position, and stated that fullbacks such as Hunt needed to be protected due to greater risk of injury.
The performance of the 2004 NRL rookies, including Hunt, had been much anticipated. After a few games, his peers and the media singled Hunt out as the next superstar of the game. To minimise the impact of excessive media pressure on Hunt’s performance, Bennett banned him from speaking to the media. Hunt scored four tries in the Round 17 clash with the South Sydney Rabbitohs, equalling the team record. His form earned him the Brisbane Broncos and Dally M Rookie of the Year awards.
Bennett advised Hunt to have fun and enjoy himself like any other teenager, so that it would not affect his second year in first-grade rugby league. However, Hunt's second season was not considered as successful as his first, despite his only missing one game, a situation that the media labelled "Karmichael's second-year syndrome". Hunt was retained in the fullback position despite his perceived lack of form, which included fewer tries and fewer kick returns than in his debut season.
Hunt scored a try in each of the first two games of the season. In Round 6, he was knocked unconscious by a high tackle from a St George Illawarra Dragons player, Shaun Timmins. The following week, still suffering from the effects of concussion, he missed his first NRL game since his debut. Hunt returned a week later and scored a try in each of the next three games. However, he only scored three more tries in the remaining sixteen weeks of the season. Hunt was a part of the junior Australian representative team at the end of the 2005 season, but was not considered for the game against Papua New Guinea for personal reasons.
Hunt sustained a foot injury in the Broncos Round 15 match and was sidelined for eight weeks. While out injured, early in the morning on 30 July 2006, Hunt was at the scene of a fight outside a Brisbane night club in Brisbane's CBD. The media, notably Channel 7 and Channel 10, alleged Hunt was the instigator of the incident, claiming he squirted water on a woman. The Broncos denied he had any involvement in the incident although a woman gave his name to police. Hunt also denied involvement, insisting he was merely a bystander.
When Hunt's contract ended at the end of 2006, concern mounted as to whether the Broncos would be able to retain him. The Broncos could only offer Hunt about $200,000 a season, while other teams were able to offer him $300,000. The South Sydney Rabbitohs reportedly offered Hunt up to $500,000 a season, but despite these offers, on 29 June, he signed with the Broncos for a further three years. Brisbane Broncos chief executive Bruno Cullen announced that contract negotiations were "straightforward" and there was never any doubt that Hunt wanted to stay at the Broncos.
During Hunt's injury, Bennett moved Broncos team mate Justin Hodges to fullback and Hodges was impressive in the position. When Hunt returned to the Broncos side in Round 25 against the Parramatta Eels, he was forced to play on the wing due to Hodges' good form. Hunt and Hodges continued to switch the fullback position for the remainder of the season. Hunt missed the first week of the finals due to a hamstring problem but was able to return a week later. The Broncos reached the grand final against the Melbourne Storm, winning 15–8 with Hunt playing on the wing and Hodges at fullback.
Hunt's skill on the field and positive influence on other team members led to his emergence, early in 2007, as a future candidate for the Broncos captaincy. Broncos chief executive Bruno Cullen stated that such a move would have his and the Broncos management's full support. Current captain Lockyer also gave his support to Hunt being the next captain, saying that he has the respect of fellow players and the necessary leadership qualities.
After Round 18 of the competition, during a training session on 20 July 2007, Hunt injured his hamstring and was originally scheduled to miss six weeks. However, his recovery took longer than expected, and he was eventually ruled out for the rest of the season. Despite playing only thirteen games for the Broncos in 2007, he received the Broncos award for Best Back.
Over the 2008 pre-season Hunt recovered from his hamstring injury and played in his first match since the injury in the 23 February 2008 trial match against Canberra. After playing another trial in the position of five eighth, Hunt returned to first grade in Round 1 of the 2008 NRL competition playing fullback in the Broncos 48-12 win over Penrith. In Round 2 Hunt shoulder charged Sydney Roosters five eighth Braith Anasta in the head and was subsequently placed on report. The NRL judiciary committee charged Hunt with a Grade-Three Careless High tackle and if pleading guilty would miss one week of premiership competition. Pleading not guilty to the charge, Hunt was cleared to play by the judiciary with no penalty being given but missed one week anyway due to a knee injury.
In July 2008, speculation began on what Hunt would do past the expiration of his contract at the end of the 2009 season. With some high-profile defections of star league players to cashed-up rugby union clubs from France, Hunt is expected to be the target of offers from overseas and within Australia. Australian rugby union club Queensland Reds have stated their intentions to attempt to lure Hunt to the rugby union code, with the reasoning being his successful young career in rugby union. From within the NRL competition, Sydney based clubs Sydney Roosters and St. George Illawarra Dragons have stated their intentions to make a bid for Hunt for his services in the 2010 season, claiming they can double Hunt's three year deal from 2006, reported to be around $200,000. The Broncos however, are expected to still be a factor in his decision with the possibility of the captaincy a possible lure to remain with the Broncos.
In the final round of the 2008 NRL competition, Hunt became the youngest player in premiership's history to reach 100 first-grade games. He set up three tries and scored one himself in the man-of-the-match performance against the Newcastle Knights in the game which secured the Broncos place in the competition finals. This performance came a day after his coach Wayne Bennett stated that Hunt was the "bravest" player he had coached because of the strong runs he made when returning the ball from fullback.
On 15 September 2008, a 24 year old women lodged a formal complaint about a sexual assault two days earlier. The people alledged to be at the centre of the incident were Hunt and Brisbane Broncos team mates Darius Boyd and Sam Thaiday. The players are cooperating with police and the outcome is likely to be known by the end of October. It is unknown what consequences Hunt will face in terms of his future at the Broncos who have had a strict policy on off-field behaviour.
Though Hunt was considered for the 2004 State of Origin series amongst other fullbacks, he was ignored for the entire series in favour of Penrith Panthers fullback Rhys Wesser. Hunt's good form in 2006 paid off when he was selected to play for the Australian team against New Zealand on 5 May as a replacement for the injured Anthony Minichiello. This decision proved controversial, due to his being preferred over the in-form Matt Bowen. That game was Hunt's representative and international debut, and though he performed well, he only played for 50 minutes, making one error and 83 metres in kick returns. However, he was unable to complete the game due to concussion sustained by a blow from Frank Pritchard. He was taken unconscious from the field and played no further part in the match.
After his Test debut, Hunt was expected to be the Queensland fullback in the first match of the three game State of Origin series. However, Queensland selectors decided to stay with incumbent Origin fullback Matt Bowen. The selectors reconsidered after Queensland lost the first game, selecting Hunt for the second match. In his State of Origin debut, Hunt ran with the ball seventeen times, making 196 metres. He missed the third Origin game because of a foot injury, sustained in the Broncos' Round 15 match, and was replaced by Clinton Schifcofske.
Hunt retained his fullback position for Australia in the 2007 ANZAC Test. Hunt ran the ball 18 times, the most of any player, and scored one try in a man-of-the-match performance as Australia won 30–6. Hunt was named fullback for all three games of the 2007 State of Origin series, despite the club form of rival fullbacks Billy Slater and Matt Bowen. In the second game, Hunt played a full match despite aggravating his foot injury as Queensland won the match and the series. He also played in the third Origin game despite suffering a calf injury during training. Hunt was not considered for selection in the end of year Test for Australia against New Zealand due to a hamstring injury sustained earlier in the season.
A minor knee injury which only left Hunt out for two weeks was enough to deny him an opportunity of regaining the fullback position for Australia in the Centenary test match against New Zealand in May, 2008. Hunt's place in the Queensland team for the 2008 State of Origin series was assured by Queensland coach Mal Meninga but there was speculation that Hunt could play five-eighth in place of injured team-mate Darren Lockyer. While not the best five-eighth possibility for the Queensland representative team, his selection there would make way for the Australian fullback Billy Slater. Hunt, having never played a senior rugby league game at the five-eighth position, was controversially selected at the position leaving out in form possibility Scott Prince, in the Queensland team.
In a losing Queensland team, Hunt didn’t play well nor bad, being outstanding in defence but subdued in attack. Hunt’s position at five-eighth is now in question for the second game, but coach Mal Meninga has stated that Hunt will be in the team somewhere. Meninga's statement came to truth when Hunt was named on the interchange bench for the second game, making way for Queensland custodian and captain Lockyer in the five-eighth role. However, Meninga made a late change before the game and put Hunt in his familiar role at fullback over Slater who was place on the interchange bench. Hunt played in the match, which Queensland won 30-0, for only 51 minutes being put on the interchange bench for 29 minutes in the middle part of the game. Hunt retained his position for game three of the series and played in part of a game and therefore series winning Queensland team.
| Awards | ||
|---|---|---|
| Preceded by Matt Utai (Bulldogs) | Dally M Rookie of the Year 2004 | Succeeded by Tim Smith (Parramatta Eels) |
| 17 years, 118 days | ||
| 21 years, 293 days | ||
| with Steve Renouf, Wendell Sailor, Justin Hodges and Denan Kemp | ||