User:SOTO/Forum Archive/The Reference Desk/@comment-5557583-20130327040416/@comment-27.55.12.83-20130403213401

I think there is a connection. Clara's catchphrase is 'run you clever boy...and remember. In Forest of the Dead, Cal says, at the end, 'Aren't I a clever girl' and during the episode Dr Moon keeps saying 'and then you remembered.'

Also, Cal's name is Charlotte Abigail Lux. Lux is Latin for 'light' and Clara is Latin for 'bright'. Not to mention the fact that Clara looks like a grown-up Cal.

Quite why Cal would be resurrected is beyond me though!