His only appearance was in Our A-Story is a "D" Story.
Klaus is a bald heavily-tattooed adult human male, with the most prominent tattoo being the word "hatred" written across his forehead. He has thick bushy black eyebrows and a slender build.
He wears an orange prison uniform and sneakers and a lime green bandanna on his left thigh.
Todd is solicited by two gangs while in prison: the Aryans and the Latin Kings. He is torn between which gang to join, as the two gangs ask him to consider and make a decision, at the upcoming prison mixer.
Todd calls BoJack multiple times, for both advice on his situation and to possibly get bail altogether, but is either ignored or dismissed.
The Hollywood 'D' is then en route to being returned from Mr. Peanutbutter's house to its original location when one of Mr. Peanutbutter's celebratory fireworks downs the helicopter.
It crashes into the prison Todd is being kept at, where he is moments away from being curb-stomped by both gangs after they found out that he was trying to please both at once. He is saved by the ensuing jailbreak.
He escaped from the prison at the end of the episode when a helicopter crashed into the side of the building.