- “Please don't make me retire. This job is what keeps me alive. I never married and my dog is dead.”
- ―Jack Marley, at his retirement party[src]
He is forced to retire, even though he resists, insisting he loves his job (It's implied that Mr. Burns had him retire as an excuse for him to have a party). Marge replaced him. He is still seen around Springfield showing that he stayed there after retiring.
After Marge was put on trial for unintentionally shoplifting from the Kwik-E-Mart, Jack appears as the jury's foreman and states the verdict that he and the other jurors reached:Guilty (although it might be just a similar looking character).
He has also been seen working as a janitor on a ship. Following Homer's court martial, as Jack is mopping passed him, he says to him, "I think you're off the hook" and Homer gives his "woo-hoo" cheer.
- In the Latin American dub, he is named Carlos Magaña after his late dubbing actor.
Note: Many of his appearances are brief, background roles. Episodes in which he has an actual role are in bold.
Springfield Nuclear Power Plant Employees
|Charles Montgomery Burns ● Waylon Smithers, Jr. ● Canary M. Burns ● Al Simmons ● Executive 1 ● Executive 2 ● Executive 3 ● Burns' Dog|
|Homer Simpson ● Lenny Leonard ● Carl Carlson ● Blinky ● Inanimate carbon rod ● Charlie ● Karl ● Tibor ● Gummy Joe ● Joey Crusher ● Lowblow ● Eugene Fisk ● Stewart ● Pops Freshenmeyer ● Dr. Olberman ● Power Plant Employee (Simpson and Delilah) ● Power Plant Employee (Life on the Fast Lane) ● Springfield Nuclear Power Plant Employee ● Half-Bald Worker ● Bathroom Employee ● Mr. Mackleberry ● Giant Handed Man ● Ms. Finch ● Bernie ● Employee of the Month Model ● Employee of the Month Presenter ● Mr. Gammel ● Great Dad ● Late shift worker 1 ● Late shift worker 2 ● Late shift worker 3 ● Springfield Nuclear Power Plant employee ● Hazmat Employee ● Crane Operator ● Guy Who Watched Homer's Speech 1 ● Guy Who Watched Homer's Speech 2 ● Helburn ● Red Headed Employee ● Nuclear Inspector ● Male Nuclear Inspector ● Female Nuclear Inspector ● Dog (SNPP) ●|
|Marge Simpson ● Frank Grimes † ● Jack Marley ● Waylon Smithers, Sr. † ● Zutroy ● Mindy Simmons ● Ted ● Wayne Slater ● Larry Burns ● Chip Davis † ● Elon Musk ● Don Bookner ● Roz Davis ● Larry ● Opening sequence co worker ● Robert Marlow ● Queenie|
|Radioactive waste ● Springfield Nuclear Power Plant softball team ● Smilin' Joe Fission ● Plant Operations Center ● S.N.P.P. Cafeteria|