General Information
Real name: Yz
First Appearance: Flash Comics #1
Created by: John Wentworth
Stan Aschmeier
Affiliations: Jakeem Thunder
Justice Society of America
Formerly Johnny Thunder
All-Star Squadron
Abilities: Reality alteration
Portrayed by: None



Yz is the real name of Johnny Thunder's Thunderbolt, a pink magic genie who can do about anything if it has a human guide to steer it.

In 1940, the young Johnny Thunder became its master by saying the magic words "Cei-U" (or "say you" - which is "Yz" backwards) and they had many wonderful adventures together during the 1940s. Originally the Thunderbolt was believed to come from the Asian land of Bhadnisia, but was recently revealed to be an djinn from the 5th Dimension.

In recent years, Johnny Thunder has suffered from Alzheimer's, and other potential heroes have become the Thunderbolt's master, first Johnny's ward Kiku, and later the reluctant hero Jakeem "J.J." Thunder, who worked with the JSA. (The Thunderbolt also seems to have transferred some powers to Johnny Thunder's biological son, William Twotrees a.k.a. Will Power.)

Yz resides in a magic pen and is called into action when Jakeem clicks it and says the words "so cool". For a while, the Thunderbolt was merged with his archenemy, the blue djinn known as Lkz, into a purple Thunderbolt. Now it seems like the pink Yz is on his own again, or if not, at least he is the dominant part. He also merged with Johnny Thunder's soul, and became Johnny Thunderbolt, with an Yz appearance but with Johnny's mind, and now the original master is the genie.

Powers and AbilitiesEdit


  • Reality Alteration: not bound by third dimensional laws. Thus he can perform any feat using what either is or appears to be magical.


  • Exact Command: Thunderbolt's abilities, thanks to his magical powers, are quite vast; however, he is limited by only being able to execute Jakeem's exactly worded order.


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