RKMBs Forums .::Robegories::. Media The Official Doctor Who thread

Thinking about it, that still doesnt mean it was decided before the series started.
The Confidential episode was probably recorded after the series was filmed, and according to http://www.gallifreyone.com/epguide-dw9.php , Eccleston decided half way through the series filming, so it would have made sense that while filming, they signed Tennant, then asked him to voice the Confidential show!