Ice King

Ice King
Adventure Time character
First appearance	Adventure Time (2007)
Created by	Pendleton Ward
Voiced by	Tom Kenny (2010–present) John Kassir (2007)
In-universe information
Full name	Simon Petrikov
Nickname	Ice King
Species	Human
Gender	Male
Significant other	Betty Grof (ex-fiancée)
Children	Marceline the Vampire Queen (adoptive daughter)

Simon Petrikov, more commonly called the Ice King, is a fictional character in the Adventure Time franchise. He was first introduced in the American animated television series Adventure Time. The character was the main antagonist of the show's early seasons and develops into a supporting character in later seasons. He is also a main character in the adult animated spin-off series Adventure Time: Fionna and Cake. The character is voiced by the American actor Tom Kenny in most appearances.

Originally introduced as an evil but incompetent wizard obsessed with kidnapping princesses, he was depicted in later seasons of Adventure Time as a lonely man driven insane by a magical crown which grants him ice powers. The show's third season reveals that he was once an ordinary human named Simon Petrikov before falling under the influence of the crown. Simon regains his sanity and memories after being stripped of his powers in the series finale "Come Along with Me." Adventure Time: Fionna and Cake depicts Simon's difficulty adjusting to life after these events.

Although the character initially garnered a lukewarm reception from critics, his later backstory and character development into a tragic figure were widely acclaimed. The crown's influence over Ice King came to be seen as a complex depiction of social isolation and mental illness, notably Alzheimer's and bipolar disorder. The episodes "I Remember You" and "Simon & Marcy", focusing on the Ice King's paternal relationship with Marceline the Vampire Queen, are often considered two of the show's best.