A freelancer, Janke worked for both DC and Marvel Comics during his career, penciling covers and stories here and there, but mostly focusing on "finish inking" over other artists' pencils. Janke has worked extensively with pencilers Jon Bogdanove and Jerry Ordway, and is a co-creator (with artist Ordway) of Bertron (who created Doomsday), and Mr. Z (best known from the Superman story "Time and Time Again"). With Mark Gruenwald and Paul Neary, Janke co-created Armadillo.
In his career, Janke has also worked on dozens of independent comic books[3] and underground comix, including his own self-published series, Flaming Baloney (published with James R. Blevins c. 1975).[5]
Janke's first published work was a 1974 illustration in DC Comics' House of Mystery,[6] but his professional career took off a decade later when he was hired to ink Paul Neary on Marvel's Captain America, which he did for two years.
Moving over to DC Comics in 1987, Janke inked the final nine issues of Electric Warrior over Jim Baikie's pencils. Next, he inked the four-issue mini-series The Phantom, pencilled by Joe Orlando and written by Peter David. Around the same time he became the regular inker on The Adventures of Superman and Superman, mostly inking Jerry Ordway's pencils. He then spent nine years as the inker of Superman: The Man of Steel, mostly over Jon Bogdanove. (Bogdanove and Janke also illustrated many covers for the Steel solo title during this period.) As inker on Superman: The Man of Steel, Janke contributed to, and benefited from the success of, the best-selling 1992-1993 "The Death of Superman" story arc.[4]
Janke's final major run as an inker was for The Spectre in 2002–2003 (over Norm Breyfogle's pencils). Since 2003, Janke's published comics credits have been rare.
