Rob has black hair, black eyebrows, a black mustache, a gray skin color, and an orange "guest" outfit.
Rob loves to "paint" and doesn't like it if someone doesn't like his work.
If Jesse says Rob's "painting" of a mushroom is good, he is happy and calls Jesse a friend. If Jesse says they don't like it, Rob will be angry, and later calls them, "That happy, little jerk who didn't like my happy, little painting."
- "Later, later."
- —Rob to Jesse. src
- Rob is very likely a reference to Robert Norman "Bob" Ross, being a painter with a similar hairstyle and name. Eric Stirpe has joked about the character's full name being "Rob Boss" in a Tumblr post.
- Rob, as he determinately explains to Jesse, was sent to the Sunshine Institute for throwing TNT at Romeo.