 Fans of the show nicknamed a male character with a brown coat , messy brown mane , and an hourglass Cutie Mark " Doctor Whooves " because of a purported likeness to David Tennant 's portrayal of The Doctor from the long @-@ running BBC television series Doctor Who . The character had a minor speaking role in the episode " Call of the Cutie " and a brief role as a time @-@ keeper in the episode " The Super Speedy Cider <unk> 6000 " . Other licensed media further carry the homage ; Enterplay 's trading card line associate the character , named " Time Turner " , as dealing with " all things timey @-@ wimey " around Ponyville , alluding to a famous quote from the episode " Blink " , while one of the store @-@ exclusive covers for the Friendship Is Magic comic set the Doctor Whooves character among many iconic Doctor Who elements . The character was openly named Doctor Hooves in The Elements of Harmony : The Official Guidebook , published by Little , Brown and Company . Prof. Colin Burnett of Washington University of St. Louis considered the adoption of these fan names and characteristics within the show as demonstration of co @-@ creative collaboration that can exist in modern media , emphasized by unexpected demographics of bronies that helped to bolster the creators ' success with the work . 
