Rendell Locke is the late husband of Nina, and father of Tyler, Kinsey, and Bode.
His murder by Sam Lesser is the event that causes his family to move to his childhood home, Keyhouse Manor.
In their senior year, the group used the keys during a school play of The Tempest, which was a huge success. Inspired by the feeling of everyone cheering for him and his friends after the play, Rendell brought up the idea of opening the Black Door to get some Whispering Iron. With it, he intended to create a new key that would circumvent the Riffel Rule, and allow them to keep using magic after they grew up.
To get the Whispering Iron, they would need to open the Black Door to let a demon out. If nobody looked at it, the demon would have no host, and die, turning to the Iron. However, Duncan snuck in, and Luke became the host of the demon later known as Dodge after saving Duncan.
Rendell and Erin, realizing that Lucas's soul was infected, used the Head Key to remove all of his memories to limit the damage he could do. That night, Ellie became angry at the group over not doing enough to help Lucas, and Rendell and Kim presumably broke up. Rendell later used the Echo Key to call back his mother, and entrusted Lucas's memories to her. Dodge eventually recovered Lucas's memories by following Ellie to the Wellhouse.
After killing Mark, Dodge then took Duncan hostage. Dodge ordered Rendell to trade his safety for the Omega Key. In the confrontation, Rendell and Ellie managed to defeat Dodge, though Kim was killed, and Erin's memories were scattered into the Drowning Cave, leaving her unable to communicate clearly.
Later Years and Death
Rendell forgot about the Keys because of the Riffel Rule, though he did speak of them to Nina when he drank heavily.
At some point, Rendell gave the bracelet containing the Anywhere Key to Kinsey.
The family lived in San Francisco, where Rendell was a high school guidance counsellor.
When Kinsey was fourteen, she convinced Tyler to bring her to a party thrown by the football team. Kinsey got into a car with Tyler's drunk friend, Shep Martin, who crashed his car into a tree, injuring Kinsey.
Rendell, furious that Tyler brought Kinsey to the party, cancelled Tyler's summer plans of going to Baja.
One of Rendell's students was Sam Lesser, who Rendell was helping apply to colleges. Rendell provided Sam with the forms for financial assistance, but concerned for Sam's emotional health, declined the request to write a recommendation letter.
That summer, Tyler was still not speaking with Rendell. When the Locke family went to their summer home in Willits, they were followed by Sam, under Dodge's instruction. Sam was accompanied by his classmate, Al Grubb.
Sam demanded Rendell give him the Omega Key and the Anywhere Key. Rendell, not knowing what Sam was talking about, attempted to talk Sam down. Sam shot Rendell through the eye, killing him.
After Rendell's death, the family moved to Keyhouse.
Crown of Shadows
During an altercation between Nina and Tyler several months later, Rendell's urn was shattered, and the Locke children found the Omega Key hidden in his ashes.
After being shot, Tyler Locke was placed in the Mending Cabinet by Nina. Inside the cabinet, Rendell appeared to Tyler, telling him that "you can and can't save someone who has been infected", and that "keys turn both ways", inspiring Tyler to create the Alpha Key.
After Dodge's defeat, Tyler visited the Wellhouse and called his father back using the Echo Key. The two tearfully reconciled, with Tyler offering to use the Anywhere Key to let Rendell's echo leave the Wellhouse and rejoin the family. He declined, and the two stepped outside, hugging as Rendell faded away.
Rendell Locke was known to have a penchant for knock-knock jokes.
- Who (Who? What, are you an echo?)
- Wanda (see me juggle? I'm really good at it.)
- Omelet (smarter than I look!)
- Doris (open. Why don't you come on out and say hello to your old man?)
- Locke & Key: Clockworks #3, "The Tamers of the Tempest". December 14, 2012
- Locke & Key: Welcome to Lovecraft #1. February 20, 2008
- Locke & Key: Clockworks #4, "The Whispering Iron". February 1, 2012
- Locke & Key: Head Games #1, "Intermission". January 14, 2009
- Locke & Key: Clockworks #5, "Grown-Ups". March 14, 2012
- Locke & Key: Crown of Shadows #6, "Beyond Repair". July 14, 2010
- Locke & Key: Clockworks #6, "Curtain". May 16, 2012
- Locke & Key: Keys to the Kingdom #5, "Detectives - Part 1". March 2, 2011
- Locke & Key: Omega #1, "Our Regrets". November 14, 2012
- Locke & Key: Welcome to Lovecraft #4. May 14, 2008
- Locke & Key: Head Games #6, "Army of One". July 1, 2009
- Locke & Key: Omega #5, "The Fall". June 5, 2013
- Locke & Key: Alpha #2, "The End", December 18, 2013
- Locke & Key: Clockworks #2, "Smash!". August 31, 2011