Zachary Alexander Weinersmith (born Weiner; March 5, 1982)[1] is an American cartoonist and writer, best known for his webcomic Saturday Morning Breakfast Cereal (SMBC).

[5][6] With the success of SMBC, Weinersmith returned to college at San Jose State University in order to satisfy personal interests while also creating topics and creative ideas for his comics; initially planning on biochemistry, he opted to pursue physics.

"[3] Weinersmith authors Saturday Morning Breakfast Cereal (SMBC), a popular webcomic that is updated daily.

Recurring themes in SMBC include religion, superheroes, romance, dating, science, research, parenting and the meaning of life.

This version (referred to as Classic SMBC on the site's archives) ran from January 28, 2002 to September 3, 2002.

In 2005, Weinersmith wanted to work on SMBC full-time, and around this time moved to daily updates.