--- title: "Vestigial Peter (S12E02) | familyguy.co.uk" canonical: "https://familyguy.co.uk/episodes/s12e02-vestigial-peter/" updatedDate: 2026-09-06 author: Alex Moss description: "Vestigial Peter: Family Guy season 12 episode 2 (S12E02), first aired 6 October 2013. Writer and director credits." --- # Vestigial Peter Episode 2 of Family Guy season 12 (S12E02), the 212th Family Guy episode overall. Written by Brian Scully and directed by Julius Wu. First broadcast on 6 October 2013. ## Story A shop assistant spots a lump on Peter's neck, and Dr Hartman diagnoses an undeveloped twin lying under the skin. Once it is drawn out the twin can talk, and Peter names him Chip. The family take to him, but his appetite for life wears on Peter, and after Chip sleeps with Peter's boss Angela, Peter has Dr Hartman separate the two of them completely. The family insist Chip stay on, and Peter attempts to feed him to a dingo. Chip understands that he is not wanted and leaves. Peter then falls down the basement stairs and breaks his leg, and Chip comes back to splint it and drag him upstairs. The two make peace, and Chip floats away on a balloon to see the world. ## Production and reception - Patrick Stewart delivers the closing narration, which sends Chip off to a part on the ABC sitcom The Middle. ([Wikipedia: Vestigial Peter](https://en.wikipedia.org/wiki/Vestigial_Peter)) - Nielsen figures gave it a 2.5 rating and an audience of 5.20 million, second in Fox's animation block that evening behind The Simpsons on 6.42 million. ([Wikipedia: Vestigial Peter](https://en.wikipedia.org/wiki/Vestigial_Peter)) - Eric Thurm of The A.V. Club graded it C plus and described the plot as repetitive and formulaic. ([Wikipedia: Vestigial Peter](https://en.wikipedia.org/wiki/Vestigial_Peter)) ## Facts | Fact | Detail | | --- | --- | | Season | 12 | | Episode | 2 of 21 | | Overall | No. 212 | | Code | S12E02 | | First aired | 6 October 2013 | | Directed by | Julius Wu | | Written by | Brian Scully | | Production code | BACX02 | | Source | Wikipedia: Family Guy season 12 | | Wikidata | Q15057420 | | IMDb | tt3144202 | | Verification | Checked against Wikidata and IMDb: title, date, numbering and credits agree | | US viewers | 5.20 million | ## Voices | Voice | Characters | | --- | --- | | Seth MacFarlane | Peter Griffin, Brian Griffin, Stewie Griffin | | Alex Borstein | Lois Griffin, Barbara Pewterschmidt | | Seth Green | Chris Griffin | | Mila Kunis | Meg Griffin | | Mike Henry | Department Store Employee | | Carrie Fisher | Angela | | Joshua Rush | Sears Employee | Principal voice credits as recorded by IMDb, which lists up to ten credits per episode, so recurring characters can be missing here. Guest voices below come from Wikipedia and TVmaze. ### Guest voices - Carrie Fisher as Angela - Patrick Stewart as Narrator, Patrick Stewart - Patrick Warburton as Joe Swanson - Seth Green as George Washington ## Links - Season: [12](https://familyguy.co.uk/episodes/season-12/) - Source: [Wikipedia: Family Guy season 12](https://en.wikipedia.org/wiki/Family_Guy_season_12) - Wikidata: [Q15057420](https://www.wikidata.org/wiki/Q15057420) - IMDb: [tt3144202](https://www.imdb.com/title/tt3144202/) - US viewers: [5.20 million](https://en.wikipedia.org/wiki/Vestigial_Peter) ## Navigation - Previous: [S12E01 Finders Keepers](https://familyguy.co.uk/episodes/s12e01-finders-keepers/) - Next: [S12E03 Quagmire's Quagmire](https://familyguy.co.uk/episodes/s12e03-quagmires-quagmire/) - Season hub: [Season 12](https://familyguy.co.uk/episodes/season-12/) - All episodes: [Family Guy episode guide](https://familyguy.co.uk/episodes/) ## Season 12: episode 2 of 21 - S12E01 [Finders Keepers](https://familyguy.co.uk/episodes/s12e01-finders-keepers/) - S12E02 Vestigial Peter (this entry) - S12E03 [Quagmire's Quagmire](https://familyguy.co.uk/episodes/s12e03-quagmires-quagmire/) - S12E04 [A Fistful of Meg](https://familyguy.co.uk/episodes/s12e04-a-fistful-of-meg/) - S12E05 [Boopa-dee Bappa-dee](https://familyguy.co.uk/episodes/s12e05-boopa-dee-bappa-dee/) - S12E06 [Life of Brian](https://familyguy.co.uk/episodes/s12e06-life-of-brian/) - S12E07 [Into Harmony's Way](https://familyguy.co.uk/episodes/s12e07-into-harmonys-way/) - S12E08 [Christmas Guy](https://familyguy.co.uk/episodes/s12e08-christmas-guy/) - S12E09 [Peter Problems](https://familyguy.co.uk/episodes/s12e09-peter-problems/) - S12E10 [Grimm Job](https://familyguy.co.uk/episodes/s12e10-grimm-job/) - S12E11 [Brian's a Bad Father](https://familyguy.co.uk/episodes/s12e11-brians-a-bad-father/) - S12E12 [Mom's the Word](https://familyguy.co.uk/episodes/s12e12-moms-the-word/) - S12E13 [3 Acts of God](https://familyguy.co.uk/episodes/s12e13-3-acts-of-god/) - S12E14 [Fresh Heir](https://familyguy.co.uk/episodes/s12e14-fresh-heir/) - S12E15 [Secondhand Spoke](https://familyguy.co.uk/episodes/s12e15-secondhand-spoke/) - S12E16 [Herpe the Love Sore](https://familyguy.co.uk/episodes/s12e16-herpe-the-love-sore/) - S12E17 [The Most Interesting Man in the World](https://familyguy.co.uk/episodes/s12e17-the-most-interesting-man-in-the-world/) - S12E18 [Baby Got Black](https://familyguy.co.uk/episodes/s12e18-baby-got-black/) - S12E19 [Meg Stinks!](https://familyguy.co.uk/episodes/s12e19-meg-stinks/) - S12E20 [He's Bla-ack!](https://familyguy.co.uk/episodes/s12e20-hes-bla-ack/) - S12E21 [Chap Stewie](https://familyguy.co.uk/episodes/s12e21-chap-stewie/) --- Unofficial fan resource. 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