Erick

From Sheapedia

Erick is Caleb's younger brother. He joined the forums after Caleb attempted suicide, and helped bring Caleb back from 'the well'. He disappeared for a few months and was suspected dead after he was researching Mook's experiments on his brother. Caleb posted a message saying he was dead, however the member Tennent was revealed to be Erick using an alias to hide from the mooks. Erick is a member of the Tape Busters.