Worcester prop Chris Horsman is the only uncapped player in Saturday's Tsunami benefit match at Twickenham.
IRB Rugby Aid, Sat 5 March
Grandstand, BBC1, 1400
But the English-born, Welsh-bred tight-head has his sights set on an international career with Wales.
"My eligibility for Wales comes up in May and there's talk about England," said the 27-year-old Horsman.
"But Wales are in regular contact so, yes, when the eligibility comes through if they choose to select me then I'm going to go with Wales."
Horsman moved to Worcester last summer but still lives in Porthcawl in south Wales.
The ex-Bath, Bridgend and Celtic Warriors tight-head revealed that England have never contacted him about his availability, despite Worcester coach Andy Keast touting his abilities.
Having caught the eye of Lions coach Sir Clive Woodward, who chose him for Saturday's IRB Rugby Aid match, Horsman could represent the British Isles team in this summer's tour to New Zealand before any country.
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But modest Horsman is playing his selection down: "It's great to have been called up but the most important thing is the cause itself.
"Just to be part of helping so many people is a great thing, because everyone knows someone who was out there or had been out there before.
"My sister was out travelling the year before and she's hoping to go back this summer to do some volunteer work, so if I can help as well that's fantastic.
"I'm not looking at it in a Lions context. Obviously this is a great chance and I want to do well, but there are all the other props playing in the Six Nations."
Horsman is paired in the Northern Hemisphere team's front row with 21-year-old Welsh prop John Yapp, which could be a glimpse of the future for Wales.
Horsman added: "It's great to be playing with Yappy. I know him from playing club rugby in Wales and he's a fantastic talent.
"Even at 19 you could tell he was a bit special and he has proved that with some great performances off the bench for Wales.
"This is a massive opportunity for him to stake his claim."
Northern Hemisphere: C Paterson (Scotland); M Bergamasco (Italy), O Smith (England), D Traille (France), B Cohen (England); D Humphreys (Ireland), G Cooper (Wales); J Yapp (Wales), A Titterrell (England), C Horsman (Worcester); M Bortolami (Italy), D O'Callaghan (Ireland); L Dallaglio (England, capt), P Sanderson (England), S Taylor (Scotland).
Replacements: R Ibanez (France), C Soulette (France), O Brouzet (France), J Thomas (Wales), M Phillips (Llanelli), C Sweeney (Wales), M Tait (England). Pitchside: Brian O'Driscoll (Ireland).
Southern Hemisphere: C Latham (Australia); B Lima (Samoa), J Fourie (SA), T Umaga (New Zealand), S Bobo (Fiji); A Mehrtens (NZ) G Gregan (Aus, capt); C Hoeft (NZ), J Smit (SA), C Visagie (SA); S Maling (NZ), V Matfield (SA); S Burger (SA), P Waugh (Aus), T Kefu (Aus).
Replacements: E Taukafa (Tonga), E Guinazu (Argentina), S Sititi (Samoa), O Palepoi (Samoa), M Rauluni (Fiji), T Delport (SA), S Drahm (Aus).