Spitter is a green, bulbous alien. He resembles a puffer fish. He has 3 spikes sticking out the top and bottom of his head. His mouth covers mostly the upper front of him, which is filled with dull colored, pointed teeth. His eyes are connected to the corners of his lips.
In Jane Smith 10, she has a pink sleeveless suit, with pink eyes.
When used by the Intellectuary, his right eye is a milky white color, unable to see.