- Donald the Grateful (also known as Rainbow the Greatful) is a Season 4 episode.
Rainbow Dash becomes grateful, but when Applejack's parents are about to be eaten by a Cloud Monster, it's up to the Mane Six to save the day once again.
- Voice actress Tara Strong guest stars as Twilight Sparkle and Cloud Monster.
- This marks the second episode to use the special Spike and Twilight Sparkle intro.
- Asleigh Bail as Rainbow Dash and Applejack
- Tara Strong as Twilight Sparkle and Cloud Monster
- Tabitha St. Germain as Rarity
- Andera Libman as Pinkie Pie and Fluttershy
- Cathy Wesluck as Spike
- Julie Kavner as Pear Butter (Buttercup)
- Dan Castellenta as Bright Mac
- Rob Paulsen as Toodles