Scifi.com reports that Catherine Tate who plays Doctor Who’s latest companion Donna, last seen in the last Christmas special episode has let slip that season four may be David Tennant’s last season. The BBC hasn’t commented on this yet. I’m not sure how much credence to give to this rumour right now. It’s already been well publicized that aside from a few movie length Doctor Who episodes, season 5 would be delayed anyway so that Tennant could do theatre. However, if it is true, it really would be a shame. As much as I loved Eccleston for the one season he did, I can’t believe how much energy Tennant has given the latest incarnation of the doctor.