Showcase — DC Comics, National Periodical Publications
Issue: #20
Last valuation update: 2025-12-19
“PRISONERS OF 100 MILLION B.C.” Featuring the origin and first appearance of Rip Hunter! Having finished work on Time Sphere II, Rip Hunter and Jeff Smith take a trip back to the Mesozoic era!Developing a means of time travel, adventurer Rip Hunter travels back to a prehistoric age to share adventures with his friends. In this issue, Rip finds himself back in the year 100 Million B.C.and with the...
First appearances: Rip Hunter, Bonnie Baxter, Corky Baxter, Jeff Smith
Creators: Ruben Moreira, Jack Miller, George Kashdan, Ira Schnapp, Henry Boltinoff, Jack Schiff, Bob Brown
Characters: Rip Hunter, Bonnie Baxter, Corky Baxter, Jeff Smith