The phrase "canon fodder" refers to people or things that are easily disposable or sacrificed for a particular cause or purpose, often without much consideration for their value or importance. Full definition
Damon and Jing's characters are the only ones afforded any real depth, while the rest of the Chinese cast (save perhaps for Lau) are treated as canon fodder. (blog.bullz-eye.com)
After turning Uriah the Hittite into canon fodder in order to have his way with the man's wife, Bathsheba, David thinks that he has gotten away with murder. (religion-online.org)
Wenger does his job, balances the books and plays decent football against the average / poor canon fodder of the Premier League.... (justarsenal.com)