Plank is the imaginary friend of Jonny 2x4. He is a plank of wood with a pair of eyes and a mouth drawn on. Although Plank is claimed to be a living being, he is never heard or seen moving on screen, but Jonny seems to be able to understand what he is saying; however, this is likely just Jonny's imagination.
It is massively questioned whether Plank really is alive or not due to the various implications of Plank moving, such as the scene in " Gimme, Gimme Never Ed ". In the episode, Eddy seems to dislike him for hurting him in various ways. Plank is somehow enrolled in Peach Creek Jr.
High and plays on the football team. In " Too Smart for His Own Ed ," he participates in the annual school spelling bee although he gets eliminated in the first round because nobody besides Jonny hears him speak. Plank is almost always seen with Jonny.
They are near-inseparable and do everything together. Plank is implied by Jonny to be a bit of a prankster and a wiseguy, and is often blamed for causing his troublesome predicaments. Jonny is so engrossed in the world of his best friend that he even created parents and friends for Plank out of other pieces of wood laying around.
Plank is a yellow piece of wood with a blue curved line for his mouth, red circles for eyes, and blue dots for pupils. He also has a chip in the upper right corner of his head, which is further explored in " Every Which Way But Ed ", as well as a few vertical cracks at the top and bottom edges.
Plank is confirmed by Danny Grå bets plank to be nothing more than an inanimate block of wood in the Season 2 Compilation. Plank has been Jonny's best friend since he was a toddler. Plank speaks and expresses himself through Jonny, with Jonny saying "Plank says Despite being an inanimate object, he seems to have a personality and mind.
There are several instances where Plank shown signs of a having his own mind and personality. For example, in the episode " Gimme, Gimme Never Ed ," Jonny reveals he receives an allowance and manipulates the Eds to ride Livsstil death-defying and poorly constructed ride, Requiem for a Whiplash for five dollars, despite Jonny's warning that Plank is just looking for kicks.
Another instance of him showing signs of having a mind is in the episode " Dear Ed ," where Jonny and Plank break their friendship due to an unseen argument which happened before the episode started. In " Tinker Ed ," he is seen reading the book, Mind Control for Pre-Pubescents in the school library as Jonny sits beside him, looking like a mindless dolt.
He is generally accepted as a living being by the Kids and the Eds save for Eddywho dismisses him as a piece of lumber. The Kankerson the other hand, see him as a backscratcher and have used him as such on a few occasions. Plank is usually seen hanging out with the kids only if Jonny is present and is often, if not always, seen nearby or with Jonny.