Kal Chenka

 was Liv and Tula Chenka's father.

In her youth, he liked to take her hiking through the mountains of Kaldor (AUDIO: The Sonomancer) Kal suffered from a chronic illness and visited a medical technician about symptoms he was experiencing. The med-tech dismissed his concerns and and misdiagnosed his patient, believing it was simply a symptom of Chenka's chronic condition. In reality, the symptoms reported were from a more serious illness, and he died shortly after. His daughter Liv, a med-tech herself, deeply regretted that she was away from Kaldor for work at the time and was unable to correctly diagnose her father herself or encourage him to seek a second opinion.

Kal Chenka died before his daughter met the Seventh Doctor and when Liv and the Eighth Doctor investigated a series of nuisance calls made to the villagers of Calcot, England by deceased loved ones in 1998, she received a call from him. The incident greatly distressed Liv, who regretted the fact that she possessed the medical expertise to correctly diagnose and save her father's life, but was not around to do it. Initially Liv believed that the phone calls drew upon the recipient's memory, but her and the Doctor's investigations revealed that the calls were real. Kal Chenka's call reached his daughter in 1998 thanks to temporal distortion affecting the entire village. Although tempted to warn her father of what would happen in his future and save his life, Liv heeded the Doctor's warnings about the potential repercussions to the Web of Time and did not. Instead, she took the opportunity granted by the temporal distortion to say goodbye to her father, and tell him that she loved him. (AUDIO: Absent Friends)