Doctor Who: 30 NuWho Characters Who Would've Made Fantastic Full-Time Companions
22. Lady Christina
Appeared in: Planet of the Dead.
The lovely Lady Christina descends into the Doctor's life - well, after a bit of a preamble involving her lack of a "lobster" card - and he immediately takes a shine to her by offering her some of his Easter egg. Who needs the Milk Tray Man?
David Tennant and Michelle Ryan have a natural sizzling chemistry, and make a fun and very attractive pairing. Their adventurist nature is best summed up when the Doctor gleefully says: "Worse it gets, the more I love it." And she replies smilingly: "Me too."
Some found Christina's haughtiness grating. But anyone who gives up a prized Indiana Jones-style prop so her fellow strandees can enjoy chops and gravy, and give Barclay the chance to charm poor old Tina, deserves another tour in her London bus. As ever, Big Finish has given Ryan the opportunity to enjoy more adventures and broaden her character.