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Leinster duo Brian O'Driscoll and Rob Kearney have been passed fit to start for the holders having been injury doubts over the past fortnight.
The British & Irish Lions tourists missed last weekend's PRO12 play-off win over Glasgow with knee and back problems respectively but will feature at outside centre and full back in the biggest club game of the year.
O'Driscoll underwent minor surgery earlier in the week but Ulster boss Brian McLaughlin was spot on in his assessment that 'wild horses wouldn't hold him back' and prevent the Ireland skipper from turning out at Twickenham.
Flanker Kevin McLaughlin had been hampered by a knock in the lead up to the semi-final win over ASM Clermont Auvergne but he returns to the starting line up in place of Shane Jennings in one of three changes to the Leinster 15 from the 19-15 success in Bordeaux.
Eoin Reddan wins the battle for the No9 shirt ahead of Isaac Boss, while, with Luke Fitzgerald having been ruled out shortly after the semi-final, Fergus McFadden comes on to the right wing.
As for underdogs Ulster, former club captain Chris Henry has been named on the openside flank after finally recovering from the ankle injury that prevented him from playing in the semi-final win against Edinburgh.
Henry had appeared touch and go for this weekend but a recent training camp in Portugal saw him step up his training and put himself back in contention for a starting spot.
The 27-year-old, who was named his province's players' player of the year earlier this month, has been described by his coach McLaughlin as the most consistent Ulster performer over the past three seasons and his presence in London will be a huge plus for the 1999 Heineken Cup Champions.
All Black prop John Afoa also returns to the Ulster team after serving a four-match suspension that saw him miss the Aviva Stadium semi-final.
Afoa was banned for a dangerous tackle on Munster's Felix Jones during the quarter-final win at Thomond Park but he is now free to link up with Tom Court and Rory Best in a powerful-looking front row.
Youngster Paddy Jackson has been selected in the fly-half spot ahead of the more experienced Ian Humphreys who only makes the bench for his final match with his hometown province before moving to London Irish next term.
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