Gunther Goth is a supporting character of A Sim's Tale fanon. He is husband of Cornelia Goth and father of Mortimer Goth. In this fanon, Gunther is the co-founder of Sunset Valley along with the Landgraabs.
Gunther invited the whole households in Sunset Valley to a feast party. However, a little incident occurred when his son, Mortimer fought with Leona Redfield, the daughter of Redfield family who just moved in to the town. He stopped the fight and scolded his son to behave, and apologized to the Redfields before had a little chat with them.
When Nancy Landgraab and Vita Alto compete in mayor election, Gunther declared that the Goths would remain neutral, at least until the election day.
Gunther then contacted by John, who told him that a fight almost broke between Nancy's and Vita's supporters. The fight stopped thanks to him.
After Vita won the election by default--due to Nancy Landgraab being arrested, Gunther and Cornelia invited to her party as one of her special guests.
After Vita Alto's death, Gunther and Cornelia attended her funeral