Gaster

"They call him the Man Who Speaks In Hands."

-Scar to the girls, The Wrath of Krane.

Gaster is a character in the World of Fantasia series who will appear in The Great Unknown. In the TWOF universe, Gaster is continuously following the girls and is referred to as "The Man Who Speaks In Hands".

Appearance
Gaster is normally shown as a cracked, white face or a black figure. His full appearance represents that of the original Undertale game; he has a black body, his hands and head are white, he has holes in his hands, and his face is cracked. He is also shown to disappear in the blink of an eye or, in some cases with the girls, a flash of purple mist.

Personality
For the most part, Gaster is a quiet being who barely speaks. However, as shown in the prologue of The Great Unknown, he has a fondness for jokes, which is how he bonded with Cassie when they first met. He has a similar relationship with Cassie as Sans does with Toriel. They met by telling jokes through a door, one of them made a promise to protect someone, and they recognize each other's voices.

Trivia

 * Gaster is confirmed to appear in The Great Unknown, according to a recent Quotev journal entry.
 * Gaster was 24 when monsters were sealed underground.
 * Gaster received the holes in his hands from the Human-Monster War.
 * He also got the cracks in his skull from Asgore, which immediately shattered their friendship.
 * Gaster is his last name.
 * Gaster has a living wife named Arial.