| Iggiumstein Wiggum|
|Relatives|| Son: Clancy Wiggum|
Daughter in Law: Sarah Wiggum
Grandson: Ralph Wiggum
|First Appearance||"Raging Abe Simpson and His Grumbling Grandson in "The Curse of the Flying Hellfish""|
|Voiced By||Hank Azaria|
Igor Percival "Iggy" Wiggum is the deceased father of Clancy Wiggum, Springfield's Chief of Police, father-in-law of Sarah Wiggum and grandfather of Ralph Wiggum. He was one of the members of the Flying Hellfish in World War II. During that time, he served in the United States Army in Europe alongside Abraham Simpson, C. Montgomery Burns, Milton Haas and Arnie Gumble. He has the same personality as his son Clancy, although he seems more well-versed in terms of military standards, as he states that they shouldn't steal things from civilians when the unit caught Private Burns trying to steal the paintings from the German Occupied Castle. His clumsy behavior, such as leaving a un-pinned grenade in his backpack, is similar to his son's . He died in a parade float accident in 1979 with four other members.
Given the fact that he mentioned having a grenade that he un-pinned and exploded in his backpack which should have killed him, Iggy was presumably the unit's Grenadier.
- Episode – "Raging Abe Simpson and His Grumbling Grandson in "The Curse of the Flying Hellfish""
- Video game – The Simpsons Game (Brief appearance in 'The Medal of Homer' cutscene)
| Flying Hellfish Members
|Abraham Simpson | Sheldon Skinner | Arnie Gumble | Asa Phelps | Iggy Wiggum | Milton Haas | Etch Westgrin | Griff McDonald | Charles Montgomery Burns | Commander Flanders|