Cal

Cal is the mechanic that is forced to open up the VX gas canisters by Ivan Erwich on Day 5.

Erwich showed up at the shop while all of Cal's co-workers were at lunch. Erwich pulled his gun on Cal, and had him open the canisters. When Cal started to ask questions, Erwich asked if he had a family. Cal says he has a wife, and Erwich says that his wife is in jail and his child is in a state run location. Erwich promises to spare his life once his task is complete. However, once the canisters are open, he Erwich shoots Cal in the back.