Cobb (The Doctor's Daughter)
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Cobb was a general encountered by the Doctor, Donna and Martha Jones on the planet of Messaline. He is the general over Klien and the Doctor's daughter, Jenny. He asked the Doctor to join them in the war against the Hath, the creatures living on Messaline. Both the humans and the Hath desire something called the Source. (DW: The Doctor's Daughter)