Jack grew up as a friend of Dan Ketch. He also studied the martial arts under sensei Yugi Watanabe.

One day a motorcyle gang entered the garage where Dan and Jack frequented. They were on the run from Mister Hyde, and locked the two up. Dan turned into Ghost Rider and defeated the group as well as Hyde.

Later, Jack and his sensei were targeted by Deathwatch. Jack was injured, and later abducted from the hospital. However, Ghost Rider was able to free him with the help of Yugi's son Sean Watanabe and Wolverine.

Some time later, Ghost Rider found himself assisted by the mysterious Shriker. Jack eventually revealed that he was Shriker. However, Dan asked him to stay out of the Ghost Rider's conflicts, as things were getting too dangerous.

After Civil War

After the Civil War, he was listed as a potential recruit for the Initiative.[1]


Jack has extensive martial arts training.


Darts and shuriken.

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