Here's a list, partially courtesy of Wikipedia - that excellent source of always accurate data - of ten famous Canadian-born people, who "made it" in the UK. There are apparently 69,000 Canadian-born people currently residing in Britain. Oh, and Ricky Gervais has a Canadian father! The Office, eh? has less of a ring to it. Admittedly, it's a bit weak as a power list, but it does include several millionaires, pop stars, tennis pros, poets, and a prime minister.
1. Baron Beaverbrook
2. Nicole and Natalie Appleton
3. Conrad Black
4. Owen Hargreaves
5. Lionel Blair
6. Hans Snook
7. Andrew Bonar Law
8. Ian Iqbal Rashid
9. David Wevill
10. Greg Rusedski
Eyewear welcomes other names to add to the list.
1. Baron Beaverbrook
2. Nicole and Natalie Appleton
3. Conrad Black
4. Owen Hargreaves
5. Lionel Blair
6. Hans Snook
7. Andrew Bonar Law
8. Ian Iqbal Rashid
9. David Wevill
10. Greg Rusedski
Eyewear welcomes other names to add to the list.
Comments
As for more recent examples, I think that future Canadian PM Michael Ignatieff fits the bill.