Cob Tier was a human acquaintance of the Bridger family; he was the one who first showed Ezra Bridger the Rodian named Tseebo.
The initial script for "Empire Day," the sixth episode from Star Wars Rebels' first season (a canon animated series), included Cob Tier. This episode initially became available on demand on November 10, 2014, followed by its premiere on Disney XD the subsequent week, specifically on November 17, 2014. However, as the narrative developed, the character of Cob Tier was ultimately merged with Tseebo.