One, Dr. Mikhail Spivakov, who, according to his bio, graduated from the Moscow State University and moved to London in 2002. His pronunciation has now acquired very distinctive British traits (intonation, the terminal clicking /k/, some stressed vowels). There is also a slightly American /bʌdi/ for body, and still distinctly Russian soft /dʲ/ in DNA.
The other, Maria with the surname that sounds eerily like Putin, asking a question on BBC Question Time. She has lived in the UK, as she says, for 30 years, but her phonetics is still distinctly foreign, noticeably more so than in the example above (reminding me a bit of what Ayn Rand sounded like):
(Curiously, I think I share her overall attitude to the EU issue.)