Oh it's finally finished, a memoir of my life, written in red ink!
Incidental 81 , also known as  Old Fish B , is an elderly fish who makes cameos in many episodes, usually in a nursing home. He is usually voiced by  Rodger Bumpass but was voiced by Tom Kenny in the episode " Doing Time" and Clancy Brown in the episode " The Great Patty Caper." He first appears in the episode " Mermaid Man and Barnacle Boy."
He is a light beige elderly fish with a big light gray beard and wears a light blue hospital gown. He only has three hairs on his head, a visible vein on his forehead and three irregular faded orange spots at each side of his head.
Role in series
He finishes a memoir of his life in red ink, but the red punch soaks the memoir, and due to it being red, makes his writing unreadable.
He is seen on a show
SpongeBob is watching at the beginning of the episode.
He is seen at another retirement home playing cards with