IMDB is now listing Jordan Marder under the role of Dimitri. Here is the casting call for Dimitri as a refresher:
DIMITRI – Eastern European, in his mid 30s to mid 40s, he is an enforcer for our “European Godfather.” Dimitri is introduced in Episode 5 and will return in Episode 8 where he has an intense encounter with Jack Bauer. Cannot be any taller than 5’11” and should have a slight Eastern European accent.. GUEST STAR.
Looking at his resume (PDF link), he certainly fits the height requirements standing at 5’9” tall (which is precisely the same height as Kiefer Sutherland).