Jacob Gryffen
From Tardis Wiki, the free Doctor Who reference
Jacob Gryffen was the son of Alistair Gryffen and Eleanor Gryffen and brother of Mina Gryffen.
Biography
Jacob went missing, along with his mother and sister, in a freak accident in 2040 and haunted his father's every step afterwards. (K9TV: The Fall of the House of Gryffen)