Crossing Indira Varma off my list. After reading Losing the Peace, I have a different image of Choudhury, and I don't see her in that role. But going back to the discussion of aging in the ST future, I suppose a 40-year old human woman in 2381 might look similar in age to a 25-year old woman in 2010. So I think a younger actress could do. The trick is, she'd have to pull off the character, and Choudhury would require subtlety. She doesn't show much, so the actress would have to show her feelings without typical theatrical exagerations. So a younger actress with a lot of depth could do just fine, I think.