Incidental 25 is recognizable by his lime-green skin and large eyes that are dark green in earlier seasons, that are light yellow in later seasons. He has dark green arms and legs. He is usually paired with a co-worker, Incidental 26, who looks almost exactly like him, with the exception of his build, which is leaner than 26, and how much is eyes are close, which is closer than 26 as well.
In older episodes, he had black shoes and looked even more like 26, in that he was almost as wide as 26.
Role in series
He is seen with Incidental 26, cramming an inflated Mrs. Puff into an ambulance.
When Squidward is being taken to the hospital by an ambulance, he is seen seated next to Squidward's disembodied head, holding a bucket containing the rest of his body and legs as he recalls his first Krabby Patty.