Merriwether St. John Williams (born March 28, 1968) is an American television writer and former Nickelodeon executive. She is best known for her work on SpongeBob SquarePants, My Little Pony: Friendship Is Magic, Camp Lazlo, and Adventure Time.

She wrote all episodes on Billy Dilley except for The Date.


Year Title Role Notes
1996-1997 Aaahh!!! Real Monsters Story Editor Seasons 3-4
1996-1997 Rugrats Story Consultant Season 4
1997-2000 The Angry Beavers Story Editor & Writer
1998-2000 The Wild Thornberrys Story Editor & Story Consultant
1999 Fashionably L.A. Actress Receptionist
1999 KaBlam! Additional Writing Segment: Stewy the Dogboy
1999-2004 SpongeBob SquarePants Story Editor, Writer, & Executive Story Editor
2003 Free For All Developer, Writer, & Executive Producer
2005-2008 Camp Lazlo Story & Story Editor
2010-2011; 2013 Adventure Time Story & Story Editor Seasons 1-2
2011 Johnny Test Writer Episode: "Johnny's World Record"
2011-2013 My Little Pony: Friendship Is Magic Writer & Songwriter Seasons 2-4
2012 Pound Puppies Writer & Songwriter Episode: "Salty"
2012-2014 Littlest Pet Shop Writer: Story & Teleplay Seasons 1-3
2013 SheZow Writer Episode: "SheZon's Greetings"
2015–present Pig Goat Banana Cricket Writer
2017 Billy Dilley's Super-Duper Subterranean Summer Co-Producer, Writer and Story Editor TBA


Year Title Role Notes
2005 The Ape Writer: Screenplay
2005 Fool's Gold Writer: Screenplay
2007 Diggs Tailwagger Writer Pilot
2007 Where's Lazlo? Story TV Movie
2007 Good Time Max Writer
2016 Toasty Tales Writer & Story Editor