17. The Summer Sun Setback (2019)
Twilight is determined to make Celestia and Luna's last Summer Sun Celebration memorable, but things start going horribly wrong.
Release date: 2019-08-24
Season number: 9
Episode number: 17
Runtime: 22 minutes
Writer: Michael Vogel
Guest stars
Cast
Tara Strong
as Twilight Sparkle (voice)
Andrea Libman
as Pinkie Pie / Fluttershy (voice)
Ashleigh Ball
as Rainbow Dash / Applejack (voice)
Tabitha St. Germain
as Rarity / Princess Luna / Granny Smith / Mrs. Cake (voice)
Cathy Weseluck
as Spike / Mayor Mare (voice)
Michelle Creber
as Apple Bloom (voice)
Claire Margaret Corlett
as Sweetie Belle (voice)
Madeleine Peters
as Scootaloo (voice)
Nicole Oliver
as Princess Celestia / Cheerilee (voice)
Peter New
as Big McIntosh (voice)
Brenda Crichlow
as Zecora (voice)
Chantal Strand
as Diamond Tiara (voice)
Shannon Chan-Kent
as Silver Spoon (voice) / Pinkie Pie (singing)
Brian Drummond
as Mr. Cake (voice)
Rebecca Shoichet
as Twilight Sparkle (singing)
Kazumi Evans
as Rarity (singing)
Rest of guest stars - click here to expand
Kathleen Barr - Queen Chrysalis (voice), Sunni Westbrook - Cozy Glow (voice)