His other major roles were in Charlie Bartlett (seen above with Downey) and Alpha Dog. Anton's been acting since he was 8 years old and is the child of Russian ice skaters, so he's a genuine Russian (he doesn't actually have the accent, but as you could see, he can easily replicate it).
I look forward to seeing him as teenage Kyle Reese in Terminator Salvation and in particular, Memoirs of a Teenage Amnesiac with Emma Roberts and an entirely Japanese cast.