Svengallop is the main antagonist of the My Little Pony: Friendship is Magic season 5 episode, "The Mane Attraction". He is Countess Coloratura's bossy and flamboyant manager and is voiced by Colin Murdoch.
Svengallop first appears with Countess Coloratura and her entourage when they appear in Ponyville for the Ponypalooza Rock Concert/charity event. Svengallop began influencing Coloratura to focus on the show and soon began tormenting Pinkie Pie with ridiculous demands and threatens to have the Countess resign from the charity event and keeps Countess Coloratura in the dark about this. Applejack gets wise to this and tries to convince Coloratura that Svengallop doesn't have her best interests.
Coloratura is initially skeptical, but Applejack later convinces her to let her prove she's correct. Using Twilight as a recording camera, Coloratura finally sees the selfish snob Svengallop is when he is caught bullying Pinkie Pie and using her fame as a threat. Confronted by the furious singer, Svengallop tells her that the show will fall apart without him and heads off in a huff.