Acting For Two / My Little Pony: Friendship Is Magic

• Rainbow Dash and Applejack are both voiced by Ashleigh Ball. Carried to extremes in "Fall Weather Friends", where both ponies, who are extremely competitive, spend the entire episode arguing with each other. Not only that, but near the end, they even Speak in Unison when they learn that they had lost the race. She also voices one or more of the nurse ponies, the male buffalo who talks to Spike in "Over a Barrel", and one of the dragons in "Dragon Quest".
• Fluttershy and Pinkie Pie are voiced by Andrea Libman, who also voices Pinkie's mother, Cloudy Quartz.
• Rarity's voice actor, Tabitha St. Germain, also voices Princess Luna/Nightmare Moon, Granny Smith, Mrs. Cake, Rarity's mom, and Photo Finish. The only time Tabitha actually talks to herself is in the episode with Photo Finish, "Green Isn't Your Color"; "Sisterhooves Social", in which Rarity talks to her mom; and "Best Gift Ever", when Rarity speaks with fan-favorite Derpy Hooves. Tabitha also voices some of the other background ponies.
  • Tabitha St. Germain had a lot more of this in the My Little Pony (G3) cartoons where she played Minty, Wysteria, and Thistle Whistle, though it was less of an issue for one-shot character Fiesta Flair and the Core 7's Scootaloo.
  • She also voices Twilight Sparkle in the recordings done at a studio in Vancouver, BC (Tara Strong, Twilight's voice actress, is based in Los Angeles), so while she does a lot of this (for example, most of season 2 episode 4 is Twilight talking to Luna, not to mention all the times Rarity and Twilight have a conversation), most of it is dubbed over later.
• Michelle Creber provides both the voice for Apple Bloom and the singing voice for Sweetie Belle (Claire Corlett provides Sweetie Belle's speaking voice). This falls into this trope due to songs like "Perfect Stallion", in which both Apple Bloom and Sweetie Belle sing. Averted as of Season 4, where Claire Corlett is doing her own singing as Sweetie Belle.
• Britt McKillip, the voice of Cadance, and Queen Chrysalis when she is impersonating Cadance in "A Canterlot Wedding", also voiced Lyra Heartstrings, who is one of the brainwashed bridesmaids, in that episode (in Lyra's next speaking role in "Slice of Life", her voice actress was switched to the aforementioned Ashleigh Ball).
• In "Hurricane Fluttershy", Cloudchaser and Flitter ask Spike what an anemometer does. All three are voiced by Cathy Weseluck in this episode.
• In the EQUESTRIA GIRLS movies, Sunset Shimmer is voiced by Rebecca Shoichet, who performs Twilight's singing voice. The finale of "Welcome To The Show" from Rainbow Rocks has the two sing together.
• In the 100th episode, "Slice of Life", Brenda Crichlow voices both Matilda and Amethyst Star, who notably have a sizable conversation about organizing the former's wedding.
• Chantal Strand voices both Diamond Tiara and her mother Spoiled Rich.
• Ingrid Nilson, the voice of Maud Pie, also voices Pinkie's other two sisters as of "Hearthbreakers".
• In the Season 6 premiere (The Crystalling - Part 2), Twilight Sparkle's and Shining Armor's parents have the same VAs as them, Tara Strong and Andrew Francis. When they appear again in "Once Upon a Zeppelin" (Season 7), they're voiced by Patricia Drake and Charles Demers, respectively.

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