Regan, who won 46 caps for his country and also played for the British Lions, will be part of a star-studded line-up that will take part in the event on the resort’s famous fairways in Murcia, south-east Spain, from June 11-14.
The former Bath, Leeds and Bristol hooker made it third time lucky in the competition in 2014 after finishing runner-up the two previous years, but faces stiff competition from a host of former internationals led by past champions, ex-England captain Phil de Glanville and Wales’s Mark Rowley.
Also competing in the 36-hole charity event – organised by Rugby’s Golf Club and sponsored by Elm Site Services – will be former England stars Lee Mears and David Trick, while Tom Shanklin, Andy Powell, Jeremy Pugh and Rhys Williams will be among the star names targeting a Welsh victory at La Manga Club.
Regan, a supporter of the event for the last six years, said: “This is a really worthwhile cause which helps give something back to those servicemen and women who have given so much for their country.
"At the same time we will also be looking to raise funds for the Life After Rugby charity which helps place retired rugby players into business.
"To say we have a lot of fun is an understatement, and that starts with the welcome party on the first evening on the balcony overlooking the 18th green at La Manga Club’s South Course. From then on, it's all about the friendly rivalry on and off the course.”
Tony Richards, chairman of Rugby's Golf Club, said: “Since 2011, we have been able to provide £120,000 of Huxley specialised golf equipment at two Help for Heroes rehabilitation centres at Tedworth House, Wiltshire, and the Chavasse VC centre in Colchester.”
The Rugby Business Network Golf Classic, sponsored by construction industry experts Elm Site Services, features two days of competitive golf in a Stableford team format on La Manga Club’s famous South and North courses, with competitors playing in teams of three alongside a different rugby celebrity each day.
Packages cost £2,597 for a team of three people and include three nights in the five-star Hotel La Manga Club Principe Felipe, breakfast, welcome drinks reception and barbeque and prize-giving gala dinner with entertainment.
Disabled servicemen will also be taking part in the event, showcasing some of the talent that has been fostered thanks to money raised from earlier events, while non-golfing partners are also welcome to attend and can enjoy all the festivities for just £450, and all packages include a donation to the Help for Heroes charity.
La Manga Club is the ideal venue for the competition with its three 18-hole championship golf courses perfectly complemented by the rest of the resort’s wide-ranging facilities, including a new Leadbetter Golf Academy – the only one in mainland spain – a 28-court tennis academy and 2,000sqm spa complex, a choice of four and five-star accommodation and wide selection of bars and restaurants.