Last year's winner Mick Kinane features among an elite group of ex-jockeys confirmed for the third running of the Aintree Legends Charity Race on Grand National day.

The 13-time Irish champion and Melbourne Cup winning jockey partnered the Paul Nicholls-trained American Trilogy to win the one-mile-five-furlong (2600m) contest last April and has since made it two from two in such events in a 'Legends' race at Doncaster's St Leger meeting.

Tony Dobbin, who won the 1997 Grand National aboard Lord Gyllene, claimed the first running of Aintree's charity race in 2011 and will also be be back for more in the contest that opens the National card on April 6.

The 12 participants have nearly 17,000 career winners among them and the previous two runnings raised over STG160,000 ($A244,610) for the Bob Champion Cancer Trust.

Brothers Michael and Richard Hills, Kevin Darley and George Duffield all join Kinane from the Flat racing scene.

The line-up is completed by Adrian Maguire, Marcus Armytage, Jim Culloty, Hywel Davies, Jimmy Frost and Carl Llewellyn.

Bob Champion leads the team of Ambassadors for the race which includes Jonjo O'Neill, Mick Fitzgerald, Peter Scudamore, Richard Pitman and Derek Thompson.

"Once again, we have a fantastic line up of both jumps and Flat legends," Champions said.

"This day more than any other will always be special for me and I can't think of a more fitting way to celebrate my 1981 Grand National win or my triumph over cancer than with this race and raising much needed funds for the Bob Champion Cancer Trust."