Jon Janus
the first Jupiter Boy, Big Bang
- Also known as
Jon Janus was the twin brother of Shon Janus (the second Jupiter Boy). He sacrificed his life to save Ultragirl (Christine Kelly).
Appearances
- Big Bang Comics #12 — 1997-07-30
- Big Bang Comics #22 — 1998-09-00
- Big Bang Presents the Ultiman Family #1 — 2005-02-09
- Big Bang Adventures #31 — 2025-01-17