Kauto Star is the equine star who has got the racing world talking with his steeplechase heroics.
The seven-year-old won his second consecutive King George VI Chase on Boxing Day after triumphing in the Betfair Chase at Haydock in November.
He is now odds-on to retain his Cheltenham Gold Cup crown in March and land a second consecutive £1m bonus for his team.
Click on the images above to discover more about the team behind a racing hero - and click back to return to top.
Breeding: Village Star-Kauto Relka (France)
Career placings: 211-1F2353-112-21F-111111-21
Owner says: Horse's name should be pronounced 'Kaw-to Star' not "Kay-to Star'. Jockey and trainer prefer the latter.
Bred in France where he so impressed with his seemingly out-of-this-world pace and power, he was nicknamed 'L'Extraterrestrial'.
In 22 races in France and Britain, he has been victorious 12 times and become the first horse to win over £2m in prize money over jumps.
Kauto Star can win despite a final-fence wobble
He delivered on all his promise during the 2006-07 season, winning all six of his high-class races at six different tracks, over distances ranging from two miles to more than three-and-a-quarter miles.
Bought by Clive Smith in 2004 for £280,000, but nearly never happened as the owner's main target at the time had been Garde Champetre. He bid £475,000 for that horse, but Irish millionaire JP McManus topped his offer by £50,000.
Smith's purple, green and yellow colours are taken from the heather-clad scenery of Camberley Heath golf course where he was once captain.
His breakthrough business golf course was Hawthorn Hill, which he later sold for a reported £8m. It was on the site of a former racecourse.
Born: 17 April 1962 Alveston, Bristol
Big wins: Gold Cup 1999 See More Business, 2007 Kauto Star; Champion Chase 1999 Call Equiname, 2004 Azertyuiop
He says: "I have never had any doubt that Kauto Star was the real deal."
The son of a policeman, Nicholls was a jump jockey in the 1980s, riding for nine years, and winning the Hennessy Cognac Gold Cup at Newbury twice.
He was assistant trainer to Devon-based David Barons, for whom he had ridden several winners, and was there when the stable sent out Seagram to win the 1991 Grand National at Aintree.
Nicholls always believed Kauto would deliver at Cheltenham
Nicholls took out a licence at Manor Farm Stables in Ditcheat, Somerset, later that year and is now the dominant force in jump racing.
He wrested the top trainer title from west country rival Martin Pipe in 2006, and Pipe retired on the day Nicholls was crowned champion. He retained the title in 2007.
Nicholls is seen as eloquent, honest and popular with punters and Press for refusing to duck questions. He often points out winners in his Racing Post column.
He once sent out seven winners and three seconds on a Saturday in 1998. Twice divorced, he is married to Georgie Browne, the former wife of racing pundit Luke Harvey.
Born: 14 May, 1979. Kill, County Kildare
Big wins: Grand National, 2000 Papillon 2005 Hedgehunter; Gold Cup 2007 Kauto Star
He says: "If you make a mistake, own up to it."
Dreamed of winning the Gold Cup ever since, aged six, he saw his dad Ted on TV winning the amateurs' version - the Foxhunters' Chase - in 1986 on Attitude Adjuster.
In the same week, great Irish mare Dawn Run won the blue riband.
Winning partnership: Walsh and Kauto Star
Ruby, who was christened Rupert, won the Grand National with Papillon for his father Ted in 2000 and repeated the trick on the Willie Mullins-trained Hedgehunter five years later.
Despite the National's wider appeal, the prematurely grey-haired Ruby believes the Gold Cup is the world's best steeplechase.
Famed for his horsemanship and patient riding style - he makes sitting still look an art form.
Walsh was a former scrum-half for his local Naas side in Kildare and is a passionate Manchester United fan. He says if Kauto Star was a footballer, he would be United's Cristiano Ronaldo.
"Kauto would be the guy who can score from anywhere but likes to beat the extra player before he does," says Walsh.
Walsh missed Kauto Star's second Betfair Chase win through injury, when Sam Thomas deputised.
Background: Went to school in Windsor, Berkshire. Lives in Surrey.
Business success: Designing and building pay-and-play golf courses.
Racing success: 2005 Grand National runner-up Royal Auclair; 2006 King George and 2007 Gold Cup Kauto Star.
He says: "I can't stand snobbery. I dislike people who were born with a head start in life looking down on others."
Smith and his partner Janet Fleetwood slept with the Gold Cup on their bedside table after his Cheltenham win.
Smith (centre) felt "relieved and privileged" after Kauto's win
He had dreamed of winning it since attending his first Cheltenham Festival in 1974, and seeing Captain Christy triumph.
The down-to-earth businessman, who has made his personal fortune after spotting a gap in the market for decent public golf courses, has attended every day of the Festival since 1981.
He says Kauto should be pronounced in a similar way to auto. He has a passion for Lagonda cars and sponsors the Lagonda trophy for young golfers, which has previously been won by Lee Westwood and Luke Donald.
A racehorse owner for 20 years, with trainers including Jenny Pitman and Martin Pipe, he has suffered the bad moments as well as the highs, and is steeped in racing's history.
"I was at Kempton when Arkle ran his last race and patted him on the backside and said 'goodbye old lad,'" he said.
MOST SIGNIFICANT OTHERS
Head lad Clifford Baker rides Kauto Star out every day. He also supervised Gold Cup winners See More Business (for Nicholls) and Charter Party (David Nicholson).
Bloodstock agent Anthony Bromley found the horse in France and bought him for Smith for 400,000 euros in the summer of 2004.
Stable lass Sonja Warburton is the lady in Kauto Star's life, who looks after him day-to-day.
THAT FINAL FENCE
What is it about this racehorse, generally a brilliant jumper, that makes him plough into the odd fence close to home when clear?
Theories abound. A previously hidden injury, crowd noise, the large trackside TV screens, maybe even just a wicked sense of humour.
On his second start in Britain, in January 2005, Kauto Star was sent off a hot 2-11 favourite at Exeter and fell at the second last when clear.
Walsh remounted and the horse was only beaten a short head despite being 20 lengths behind when he got back on board.
But unknown to the jockey, he had suffered an injury, and spent 11 months on the sidelines before returning with a win at Sandown.
Can a horse actually remember that kind of thing? Walsh is not unduly concerned: "I'm lucky enough to have the chance to ride Kauto Star, so you have to enjoy it."