|Planet of origin||Decapod 10|
|Relatives||See Family section|
|First appearance||"That's Lobstertainment!" (3ACV08)|
Sadie Zoidberg is one of Dr. Zoidberg's three parents, along with Sam and Norm. When Zoidberg was writing a letter to his uncle, Harold Zoid, he told him that he was "Norm and Sam and Sadie's boy". (3ACV08)
- Dr. Zoidberg, son.
- Norman Zoidberg, son.
- Up to nine other children.
- Harold Zoid, brother or brother in-law.
- Norm and Sam, spouses.
- Due to her name, Sadie is presumably female.
- As Decapodians die after mating, Sadie is presumably deceased, but she can also be the woman seen in Zoidberg's flashback (4ACV05).
- Sadie could be Harold Zoid's sister, losing her maiden name as is tradition on Earth.
Zoidberg: Dear Uncle Zoid, greetings from your long-lost nephew. Norm and Sam and Sadie's boy, remember?