[1] He attended the Ringling School of Art in 1967,[1] and after graduation worked at the Migrant Education Center in Fort Lauderdale, Florida.

[1] During this period he lived briefly in the Derby, Connecticut, area where Charlton was headquartered.

In 1977, Zeck started working for Marvel Comics on Master of Kung Fu with writer Doug Moench.

In 2010, Comics Bulletin ranked Moench and Zeck's work on Master of Kung-Fu sixth on its list of the "Top 10 1970s Marvels".

[8] Zeck illustrated the 1987 Spider-Man storyline "Kraven's Last Hunt",[9] written by his former Captain America collaborator J. M. DeMatteis, which is considered to be one of the quintessential stories in Spider-Man's history, as well as the definitive Kraven the Hunter storyline.