---
title: "The Peter Principal (S15E18) | familyguy.co.uk"
canonical: "https://familyguy.co.uk/episodes/s15e18-the-peter-principal/"
updatedDate: 2026-09-06
author: Alex Moss
description: "The Peter Principal: Family Guy season 15 episode 18 (S15E18), first aired 30 April 2017. Writer and director credits."
---

# The Peter Principal

Episode 18 of Family Guy season 15 (S15E18), the 287th Family Guy episode overall. Written by Steve Callaghan and directed by Greg Colton. First broadcast on 30 April 2017.

## Story

Peter is given a temporary spell as principal of the local high school. Meg, a pupil there, treats her father's new authority as a chance to settle scores with the bullies who target her. The second storyline sends Brian and Stewie into business together. They open a bed and breakfast, and the guests it attracts are largely prostitutes.

## Facts

| Fact | Detail |
| --- | --- |
| Season | 15 |
| Episode | 18 of 20 |
| Overall | No. 287 |
| Code | S15E18 |
| First aired | 30 April 2017 |
| Directed by | Greg Colton |
| Written by | Steve Callaghan |
| Production code | EACX16 |
| Source | Wikipedia: Family Guy season 15 |
| Wikidata | Q56056942 |
| IMDb | tt6694344 |
| Verification | Checked against Wikidata and IMDb: title, date, numbering and credits agree |
| US viewers | 2.42 million |

## Voices

| Voice | Characters |
| --- | --- |
| Seth MacFarlane | Peter Griffin, Brian Griffin, Stewie Griffin |
| Alex Borstein | Lois Griffin |
| Seth Green | Chris Griffin |
| Mila Kunis | Meg Griffin, Prostitute |
| Max Burkholder | Kid |
| Gary Cole | Principal Shepherd |
| Chris Cox | Door Guard |
| Colin Ford | Kid |
| Jermaine Fowler | Kid |

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

- Gary Cole as Principal Shepherd
- Emily Osment as Ruth
- Christina Milian as Esther
- Martha MacIsaac as Patty
- Colin Ford as Kid
- Wendy Schaal as Secretary
- Anders Holm as Superintendent
- Max Burkholder as Kid
- Ralph Garman as Criminal
- Chris Cox as Door Guard
- Shawn Michael Howard as New Orleans Band
- Jermaine Fowler as Kid

## Links

- Season: [15](https://familyguy.co.uk/episodes/season-15/)
- Source: [Wikipedia: Family Guy season 15](https://en.wikipedia.org/wiki/Family_Guy_season_15)
- Wikidata: [Q56056942](https://www.wikidata.org/wiki/Q56056942)
- IMDb: [tt6694344](https://www.imdb.com/title/tt6694344/)
- US viewers: [2.42 million](https://en.wikipedia.org/wiki/Family_Guy_season_15)

## Navigation

- Previous: [S15E17 Peter's Lost Youth](https://familyguy.co.uk/episodes/s15e17-peters-lost-youth/)
- Next: [S15E19 Dearly Deported](https://familyguy.co.uk/episodes/s15e19-dearly-deported/)
- Season hub: [Season 15](https://familyguy.co.uk/episodes/season-15/)
- All episodes: [Family Guy episode guide](https://familyguy.co.uk/episodes/)

## Season 15: episode 18 of 20

- S15E01 [The Boys in the Band](https://familyguy.co.uk/episodes/s15e01-the-boys-in-the-band/)
- S15E02 [Bookie of the Year](https://familyguy.co.uk/episodes/s15e02-bookie-of-the-year/)
- S15E03 [American Gigg-olo](https://familyguy.co.uk/episodes/s15e03-american-gigg-olo/)
- S15E04 [Inside Family Guy](https://familyguy.co.uk/episodes/s15e04-inside-family-guy/)
- S15E05 [Chris Has Got a Date, Date, Date, Date, Date](https://familyguy.co.uk/episodes/s15e05-chris-has-got-a-date-date-date-date-date/)
- S15E06 [Hot Shots](https://familyguy.co.uk/episodes/s15e06-hot-shots/)
- S15E07 [High School English](https://familyguy.co.uk/episodes/s15e07-high-school-english/)
- S15E08 [Carter and Tricia](https://familyguy.co.uk/episodes/s15e08-carter-and-tricia/)
- S15E09 [How the Griffin Stole Christmas](https://familyguy.co.uk/episodes/s15e09-how-the-griffin-stole-christmas/)
- S15E10 [Passenger Fatty-Seven](https://familyguy.co.uk/episodes/s15e10-passenger-fatty-seven/)
- S15E11 [Gronkowsbees](https://familyguy.co.uk/episodes/s15e11-gronkowsbees/)
- S15E12 [Peter's Def Jam](https://familyguy.co.uk/episodes/s15e12-peters-def-jam/)
- S15E13 [The Finer Strings](https://familyguy.co.uk/episodes/s15e13-the-finer-strings/)
- S15E14 [The Dating Game](https://familyguy.co.uk/episodes/s15e14-the-dating-game/)
- S15E15 [Cop and a Half-wit](https://familyguy.co.uk/episodes/s15e15-cop-and-a-half-wit/)
- S15E16 [Saturated Fat Guy](https://familyguy.co.uk/episodes/s15e16-saturated-fat-guy/)
- S15E17 [Peter's Lost Youth](https://familyguy.co.uk/episodes/s15e17-peters-lost-youth/)
- S15E18 The Peter Principal (this entry)
- S15E19 [Dearly Deported](https://familyguy.co.uk/episodes/s15e19-dearly-deported/)
- S15E20 [A House Full of Peters](https://familyguy.co.uk/episodes/s15e20-a-house-full-of-peters/)

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