:Does it matter whether a viewer think he/she hears a slight "R" sound in the Japaense or not? Maybe we can try looking at Lelouch's phone when Kallen calls him. In episode 11 for example, when Lelouch was in the cave with C.C. It was obvious that the incoming call was from "Kallen", not "Karen". Just because you think the name is "supposed to be Karen" does not mean the original Japanese producers want her to be Karen. It's just like telling someone called Catherine "Your name is supposed to be Katherine". Also, part of this confusion might have come out of romanization of the Japanese language - they romanize all the "L" you hear to "R", but it's still pronounced as "L" most of the time.