Microsoft and Double Helix have been deliberate with their character announcements for Killer Instinct. To date, seven of them have been either confirmed or teased. However, the folio included in the game's Pin Ultimate edition has saved them the trouble of revealing that final character, as the collectible has confirmed that the robotic Fulgore will join the fight.
Killer Instinct is set to come with six playable characters, meaning Fulgore will likely be one of the two characters set to be added after launch. The other post-launch character will most likely be the skeletal warrior Spinal, who was teased during Orchid's trailer (below) released last week.