Hippo Ibbotson

Ibbotson was a student at Brendon Public School in 1983, (TV: Mawdryn Undead) and Vislor Turlough's best friend. (AUDIO: Devil in the Mist) However, he nicknamed him "Hippo", and often used him as a scapegoat for mischievous he talked Ibbotson into. (TV: Mawdryn Undead)

Biography
Turlough spent a half-term with Ibbotson and his family in Weston-super-Mare. (AUDIO: The Memory Bank) One wet Sunday afternoon, they watched a film about Zulu warriors. (PROSE: Deep Blue)

Turlough convinced Ibbotson to aid in taking Alistair Gordon Lethbridge-Stewart's vintage car for a joyride, then framed him as being responsible for it. Ibottson was later summoned before Mr. Sellick, the headmaster, who told him that he would be writing to Ibbotson's parents. (TV: Mawdryn Undead)

Other references
Huxley, a novelist from Verbatim Six, reminded Turlough of Ibbotson. This led Turlough to refer to him as "Hippo" several times. (AUDIO: Ringpullworld)