115 My Little Pony: Friendship Is Magic Castle Mane-ia 04 03 2013-11-30 Adventure / Animation / Children / Comedy / Drama / Family / Fantasy / Musical Tara Strong - Twilight Sparkle / Tabitha St. Germain - Rarity / Princess Luna / Derpy Hooves / Ashleigh Ball - Applejack / Andrea Libman - Pinkie Pie / Andrea Libman - Fluttershy / Ashleigh Ball - Rainbow Dash / Cathy Weseluck - Spike The Dragon / Mayor Mare / Kelly Sheridan - Starlight Glimmer / Nicole Oliver - Princess Celestia / Michelle Creber - Apple Bloom / Madeleine Peters - Scootaloo / Claire Corlett - Sweetie Belle / Kathleen Barr - Princess Cadence / Trixie Lulamoon / John de Lancie - Discord / Peter New - Big Macintosh / Brenda Crichlow - Zecora / Lee Tockar - Snips / Marÿke Hendrikse - Gilda / Spitfire / Ashleigh Ball - Prim Hemline / Brian Drummond - Mr. Carrot Cake / Chiara Zanni - Daring Do / Nicole Oliver - Cheerilee / Chantal Strand - Diamond Tiara / Bryanna Drummond - Babs Seed / Britt Irvin - Lightning Dust / Kazumi Evans - Rarity (Singing Voice) / Rebecca Shoichet - Twilight Sparkle (Singing Voice) / Sunset Shimmer / Shannon Chan-Kent - Pinkie Pie (Singing Voice) / Andrew Francis - Braeburn / Tabitha St. Germain - Granny Smith / Veena Sood - Ms. Harshwhinny / Trevor Devall - Hoity Toity / Cathy Weseluck - Mayor Mare Twilight and Spike are sent by Celestia to the ruins of her old castle for research, and unknown to each other, the rest of the ponies find their way there as well. Meanwhile, trap doors, secret passages and a dark presence known only as the Shadow Pony await them.