Santiago Jones' father
From Tardis Wiki, the free Doctor Who reference
The mother and father of Santiago Jones followed in the footsteps of Santiago's grandmother Jo in the environmental and ecological movement. During a climate change conference, he was arrested twice. Because of their lifestyle, his family was often scattered all over the world, which caused Santiago to feel estranged. In 2010, Santiago's father went hiking across Antarctica with the Gay Dads Organisation. (TV: Death of the Doctor)