---
title: "Baby Stewie (S18E15) | familyguy.co.uk"
canonical: "https://familyguy.co.uk/episodes/s18e15-baby-stewie/"
updatedDate: 2026-09-06
author: Alex Moss
description: "Baby Stewie: Family Guy season 18 episode 15 (S18E15), first aired 15 March 2020. Writer and director credits."
---

# Baby Stewie

Episode 15 of Family Guy season 18 (S18E15), the 344th Family Guy episode overall. Written by Artie Johann and directed by Jerry Langford. First broadcast on 15 March 2020.

## Story

Quagmire cannot drink while on medication, so the families go to an escape room instead, where Brian has Stewie solve the puzzles and takes the credit himself. Brian then shows Stewie a video of Chris solving a Rubik's Cube, telling him that Chris was clever as a baby and lost it at puberty, and that the same fate awaits Stewie. Stewie builds a machine to alter his own DNA, which leaves him an ordinary infant. Brian tries to reverse the process, and Stewie comes out rearranged as a monster. Peter has taped over Splice, so Brian travels back in time to the moment before the machine was finished and admits the video was a prank, played backwards from Chris eating the cube. Stewie's revenge is an order to drown his future self and put the timeline right.

## Facts

| Fact | Detail |
| --- | --- |
| Season | 18 |
| Episode | 15 of 20 |
| Overall | No. 344 |
| Code | S18E15 |
| First aired | 15 March 2020 |
| Directed by | Jerry Langford |
| Written by | Artie Johann |
| Production code | JACX14 |
| Source | Wikipedia: Family Guy season 18 |
| Wikidata | Q103888205 |
| IMDb | tt11312624 |
| Verification | Checked against Wikidata and IMDb: title, date, numbering and credits agree |
| US viewers | 1.68 million |

## Voices

| Voice | Characters |
| --- | --- |
| Seth MacFarlane | Peter Griffin, Brian Griffin, Stewie Griffin |
| Alex Borstein | Lois Griffin |
| Seth Green | Chris Griffin |
| Mila Kunis | Meg Griffin |
| Mike Henry | Cleveland Brown |
| Dee Bradley Baker | Gremlin Stewie |
| Steve Callaghan | Audience Member, Target Employee |
| Ralph Garman | Man |
| Brett Gelman | Escape Room Guy |

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

- Jennifer Tilly as Bonnie Swanson
- Kevin Michael Richardson as Jerome
- Artie Johann as James Taylor
- Dee Bradley Baker as Gremlin Stewie
- Judy Greer as Bozo's Client
- Brett Gelman as Escape Room Guy
- Robert Wu as Korean General

## Links

- Season: [18](https://familyguy.co.uk/episodes/season-18/)
- Source: [Wikipedia: Family Guy season 18](https://en.wikipedia.org/wiki/Family_Guy_season_18)
- Wikidata: [Q103888205](https://www.wikidata.org/wiki/Q103888205)
- IMDb: [tt11312624](https://www.imdb.com/title/tt11312624/)
- US viewers: [1.68 million](https://en.wikipedia.org/wiki/Family_Guy_season_18)

## Navigation

- Previous: [S18E14 The Movement](https://familyguy.co.uk/episodes/s18e14-the-movement/)
- Next: [S18E16 Start Me Up](https://familyguy.co.uk/episodes/s18e16-start-me-up/)
- Season hub: [Season 18](https://familyguy.co.uk/episodes/season-18/)
- All episodes: [Family Guy episode guide](https://familyguy.co.uk/episodes/)

## Season 18: episode 15 of 20

- S18E01 [Yacht Rocky](https://familyguy.co.uk/episodes/s18e01-yacht-rocky/)
- S18E02 [Bri-Da](https://familyguy.co.uk/episodes/s18e02-bri-da/)
- S18E03 [Absolutely Babulous](https://familyguy.co.uk/episodes/s18e03-absolutely-babulous/)
- S18E04 [Disney's The Reboot](https://familyguy.co.uk/episodes/s18e04-disneys-the-reboot/)
- S18E05 [Cat Fight](https://familyguy.co.uk/episodes/s18e05-cat-fight/)
- S18E06 [Peter & Lois' Wedding](https://familyguy.co.uk/episodes/s18e06-peter-and-lois-wedding/)
- S18E07 [Heart Burn](https://familyguy.co.uk/episodes/s18e07-heart-burn/)
- S18E08 [Shanksgiving](https://familyguy.co.uk/episodes/s18e08-shanksgiving/)
- S18E09 [Christmas Is Coming](https://familyguy.co.uk/episodes/s18e09-christmas-is-coming/)
- S18E10 [Connie's Celica](https://familyguy.co.uk/episodes/s18e10-connies-celica/)
- S18E11 [Short Cuts](https://familyguy.co.uk/episodes/s18e11-short-cuts/)
- S18E12 [Undergrounded](https://familyguy.co.uk/episodes/s18e12-undergrounded/)
- S18E13 [Rich Old Stewie](https://familyguy.co.uk/episodes/s18e13-rich-old-stewie/)
- S18E14 [The Movement](https://familyguy.co.uk/episodes/s18e14-the-movement/)
- S18E15 Baby Stewie (this entry)
- S18E16 [Start Me Up](https://familyguy.co.uk/episodes/s18e16-start-me-up/)
- S18E17 [Coma Guy](https://familyguy.co.uk/episodes/s18e17-coma-guy/)
- S18E18 [Better Off Meg](https://familyguy.co.uk/episodes/s18e18-better-off-meg/)
- S18E19 [Holly Bibble](https://familyguy.co.uk/episodes/s18e19-holly-bibble/)
- S18E20 [Movin' In (Principal Shepherd's Song)](https://familyguy.co.uk/episodes/s18e20-movin-in-principal-shepherds-song/)

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