He is first mentioned in Two for Tina when Linda tells Bob that there will be such a thing as a chaperone king as there wasn't a raccoon king in the alley until she picked him out. She also mentions that he is gay and got married to his boyfriend, Gary.
He first appears in Slumber Party where Linda looks out for him and takes him in after a mangy raccoon she dubs El Diablo attacks him. He later escapes from Bob and Linda's bedroom and scurries around the apartment.
He is next seen in the bath tub chewing on the plastic bag containing Jessica's wet pajama bottoms.
At the end of the episode after Bob, Linda and Teddy capture El Diablo in the alley, King is let back out of the apartment.
- Likes red wine ("a little too much" according to Linda).
- Linda tells his tales to Teddy and her best friend Ginger.
- It is unknown whether he really is gay or Linda made that up.
- In the Bob's Burgers Comics series, he appears in the Genederella story in Issue 3 along with El Diablo and a raccoon version of Linda. Additionally he appears wearing Bob's good sock that he gnawed on in Slumber Party.