5

5 (voiced by ????) is the Healer part of the Scientist's personality. 5 is caring, nurturing, and the loyal, bighearted "common man" who always tries to play the peacemaker.

Trivia

 * 5 is voiced by John C. Reilly, who also voiced.
 * 5 will be resurrected and revived by Princess Twilight Sparkle, Princess Sunset Shimmer and Trixie.
 * 5 along with 1, 2, 3 and 4, 6, 7, 8 and 9 became Princess Skyla's guardians.