Hexiciah Steam

Hexiciah Steam is the father of Robecca Steam. Not much is known about him.

Known Information
In the book, Ghoulfriends Just Want to Have Fun, Robecca states that he was kind and "a swell guy" - implying that he was obviously a nice man. It also states that he was a normie, and the last place he was ever seen was the catacombs. Also, it is revealed that after creating his daughter, he was also looking into replacing human organs with mechanical parts. (Robecca believes that, as unlikely as it sounds, he might've been able to do so for himself - so there is a chance he could still be alive.) And according to Robecca, before his mysterious disappearance, Hexiciah would sneak out at late hours of the night and often act strange, stating that he wanted his daughter to live in "a world that treated all monsters equal". It is also noted that he was very close to Mr. and Mrs. Stein.

Family
Robecca was created by Hexiciah, and ever since then, the two have counted one another as father and daughter. It is also seen that they are very close, seeing how Robecca has clearly been upset more than once over his disappearance.

Timeline

 * April 2, 2013: Hexiciah Steam is mentioned (and somewhat revealed) in Ghoulfriends Just Want to Have Fun.
 * May 6, 2013: Hexiciah Steam is trademarked.