Judge William D. Claster: Comprehensive Profile - Analytics, Rulings, and Recent Cases

Orange County Superior Court, Department CX101

CA Bar #: 70549 (December 1976)

Appointed By: Gov. Arnold A. Schwarzenegger

Biography

The Hon. William D. Claster is a judge on the Orange County Superior Court in California. He was appointed to the bench by former Governor Arnold Schwarzenegger on December 3, 2010.


Claster earned a B.A. from Stanford University in 1973. He then completed a J.D. at the University of California, Los Angeles School of Law, in 1976.


He was licensed to practice in California (1976).


After graduating from law school, Claster began his legal career as an associate at Gibson, Dunn & Crutcher. During his tenure there, he represented clients in employment defense matters, rising through the ranks to become a partner in 1984.

Recent Rulings by Hon. William D. Claster

  • Sep 29, 2030 Judge William D CLASTER |  Orange County

    Plaintiffs’ Motion for Preliminary Injunction
    Provided that the City will stipulate to a preliminary injunction with respect to the provisions of Ordinance No. 6374 relating to immediate warrantless access to the short-term rental (STR) units, the Court DENIES the application for a preliminary injunctio...

  • Apr 25, 2026 Orange County

    On March 1, 2019 the Court issued its ruling regarding the interpretation of Section 13.2(f) of the parties’ lease agreement. At the conclusion of oral argument relating to that issue, the Court allowed the parties the opportunity to brief two additional questions: (1) whether under the terms of the lease ...

  • Apr 25, 2026 Orange County

    1)Defendant Saddleback Corp's Motion for Summary Judgment or, Alternatively, Summary Adjudication Against Plaintiffs 2)Defendant California Sheet Metal Works, Inc.'s Motion for Summary Adjudication 3)Defendants University Mechanical & Engineering Contractors, Inc.; Division 8, Inc.; and Wirtz Tile & Stone ...

  • Sep 01, 2023 Orange County

    Plaintiff Garriela Barragan and Victoria Hernandez Ortega's Notice of Renewed Motion and Renewed Motion for Preliminary Approval of Class Action Settlement  ROA 313...

  • Sep 01, 2023 Orange County

    1. Defendant Enjoy Technology, Inc.'s Attorneys Mark S Posard; Jennifer M. Holly; and Cristina Mehling's Notice of Motion and Motion to Be Relieved as Counsel of Reco...

  • Sep 01, 2023 Orange County

    1. Defendants D F Stauffer Biscuit Co. Inc.'s, Stauffer Biscuit Company's, and Meiji America Inc.'s Notice of Motion to Stay Proceedings  #37

    2. Case Ma...

  • Sep 01, 2023 Orange County

    1. Defendant Eileen Miller's Attorney Adam L. Kidd's Notice of Motion and Motion to Be Relieved as Counsel  ROA 725

    2. Defendant Eileen Miller's Attorne...

  • Sep 01, 2023 Orange County

    Judgment Creditor City of Buena Park's Notice of Motion and Motion to Enforce Liability on Appeal Bonds ROA 1207

    Sep 01, 2023 Orange County

    Plaintiff Sheizan Bawa's Notice of Motion and Motion for Approval of PAGA Settlement, Award Of PAGA, Counsel Fees Payment, PAGA Counsel Litigation Expenses Payment, P...

  • Sep 01, 2023 Orange County

    Petitioners Laguna Beach Historic Preservation Coalition, Preserve Orange County, and Village Laguna's Notice of Motion and Motion for Stay and Preliminary Injunction...

  • Sep 01, 2023 Orange County

    1. Defendant Fresh Grill, LLC's Notice of Motion and Motion to (1) Lift the Court's Stay; (2)Enforce Stipulation; and (3) Consolidate Arbitration Proceedings ROA 85

  • Sep 01, 2023 Orange County

    Defendant Fresh Grill, LLC's Notice of Motion and Motion to (1) Lift the Court's Stay; (2) Enforce Stipulation; and (3) Consolidate Arbitration Proceedings ROA 78

  • Aug 25, 2023 Orange County

    1. Defendants Sage Apartment Communities and Investment Property Group UT, Inc.'s Notice of Motion and Motion to Compel Arbitration and Stay Proceedings ROA 26

  • Aug 25, 2023 Orange County

    Status Conference

    Aug 25, 2023 Orange County

    Defendant Premier Contractors, Inc.'s Notice of Motion and Motion to Compel Arbitration and Stay Action Pending Resolution of Arbitration ROA 24

  • Aug 25, 2023 Orange County

    Plaintiffs People for the Ethical Operations of Prosecutors and Law Enforcement; Tina Jackson; Theresa Smith; and Bethany Webb's Verified Application of Kimberly Salt...

  • Aug 25, 2023 Orange County

    Plaintiff Cristobal Flores-Ocampo's Motion for Preliminary Approval of Class Action Settlement  ROA 196

    Aug 25, 2023 Orange County

    Plaintiff Josue Uribe's Notice of Motion and Renewed Motion for Preliminary Approval of Class Action Settlement ROA 57

    Aug 18, 2023 Orange County

    1. Defendant James Carlson's Notice of Demurrer and Demurrer to Plaintiff's First Amended Complaint   ROA 92

    Aug 18, 2023 Orange County

    Petitioner Laguna Beach Historic Preservation Coalition, Preserve Orange County, and Village Laguna's Notice of Motion and Motion for Preliminary Injunction ROA 171

    Aug 18, 2023 Orange County

    Plaintiff Elmira Rad's Notice of Motion and Unopposed Motion for Preliminary Approval of Class Action Settlement   ROA 179

    Aug 18, 2023 Orange County

    Defendant Construction Development Management, Inc.'s Attorney's Notice of Motion and Motion to be Relieved as Counsel ROA 82

  • Aug 18, 2023 Orange County

    Plaintiff Alejandro Ramirez's Notice of Motion and Unopposed Motion For Preliminary Approval of Class Action Settlement and For Leave to File First Amended Complaint ROA 58

  • Aug 18, 2023 Orange County

    1. Plaintiff Brian Lang McDowell's Notice of Motion and Motion For an Order Granting Plaintiffs Leave to Take Ford Motor Company's Deposition RE: Business Records Foundation for Writing Previousl...

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Recent Cases by Hon. William D. Claster

On February 27, 2026 a case was filed in the jurisdiction of Orange County. Judge William D. Claster presiding.

Filed

Feb 27, 2026

Judge

Hon. William D. Claster Trellis Spinner 👉 Discover key insights by exploring more analytics for William D. Claster

Court

Superior

County

Orange County, CA

Practice Area

Labor and Employment

Matter Type

General Employment

Case Last Refreshed

Feb 28, 2026

On November 25, 2025 a case was filed in the jurisdiction of Orange County. Judge William D. Claster presiding.

1 File
Filed

Nov 25, 2025

Judge

Hon. William D. Claster Trellis Spinner 👉 Discover key insights by exploring more analytics for William D. Claster

Court

Orange County

County

Orange County, CA

Practice Area

Labor and Employment

Matter Type

General Employment

Case Last Refreshed

Nov 27, 2025

On November 10, 2025 a case was filed in the jurisdiction of Orange County. Judge William D. Claster presiding.

1 File
Filed

Nov 10, 2025

Judge

Hon. William D. Claster Trellis Spinner 👉 Discover key insights by exploring more analytics for William D. Claster

Court

Orange County

County

Orange County, CA

Practice Area

Labor and Employment

Matter Type

General Employment

Case Last Refreshed

Nov 11, 2025

On November 6, 2025 a case was filed in the jurisdiction of Orange County. Judge William D. Claster presiding.

Filed

Nov 06, 2025

Judge

Hon. William D. Claster Trellis Spinner 👉 Discover key insights by exploring more analytics for William D. Claster

Court

Orange County

County

Orange County, CA

Practice Area

Administrative

Matter Type

Writs

Case Last Refreshed

Nov 08, 2025

On October 24, 2025 a case was filed in the jurisdiction of Orange County. Judge William D. Claster presiding.

Filed

Oct 24, 2025

Judge

Hon. William D. Claster Trellis Spinner 👉 Discover key insights by exploring more analytics for William D. Claster

Court

Superior

County

Orange County, CA

Practice Area

Creditor

Matter Type

Collections

Case Last Refreshed

Dec 30, 2025

On October 24, 2025 a case was filed in the jurisdiction of Orange County. Judge William D. Claster presiding.

Filed

Oct 24, 2025

Judge

Hon. William D. Claster Trellis Spinner 👉 Discover key insights by exploring more analytics for William D. Claster

Court

Orange County

County

Orange County, CA

Practice Area

Civil

Matter Type

Civil Rights

Case Last Refreshed

Feb 27, 2026

On September 11, 2025 a case was filed in the jurisdiction of Orange County. Judge William D. Claster presiding.

Filed

Sep 11, 2025

Judge

Hon. William D. Claster Trellis Spinner 👉 Discover key insights by exploring more analytics for William D. Claster

Court

Orange County

County

Orange County, CA

Practice Area

Torts

Matter Type

Personal Injury

Case Last Refreshed

Sep 13, 2025

On April 25, 2025 a case was filed in the jurisdiction of Orange County. Judge William D. Claster presiding.

Filed

Apr 25, 2025

Judge

Hon. William D. Claster Trellis Spinner 👉 Discover key insights by exploring more analytics for William D. Claster

Court

Orange County

County

Orange County, CA

Practice Area

Torts

Matter Type

Economic Torts

Case Last Refreshed

Apr 27, 2025

On April 7, 2025 a case was filed in the jurisdiction of Orange County. Judge William D. Claster presiding.

Filed

Apr 07, 2025

Judge

Hon. William D. Claster Trellis Spinner 👉 Discover key insights by exploring more analytics for William D. Claster

Court

Orange County

County

Orange County, CA

Practice Area

Torts

Matter Type

Toxic,Environmental

Case Last Refreshed

Apr 10, 2025

On March 27, 2025 a case was filed in the jurisdiction of Orange County. Judge William D. Claster presiding.

Filed

Mar 27, 2025

Judge

Hon. William D. Claster Trellis Spinner 👉 Discover key insights by exploring more analytics for William D. Claster

Court

Orange County

County

Orange County, CA

Practice Area

Administrative

Matter Type

Writs

Case Last Refreshed

Mar 29, 2025

On March 24, 2025 a case was filed in the jurisdiction of Orange County. Judge William D. Claster presiding.

Filed

Mar 24, 2025

Judge

Hon. William D. Claster Trellis Spinner 👉 Discover key insights by exploring more analytics for William D. Claster

Court

Superior

County

Orange County, CA

Practice Area

Creditor

Matter Type

Collections

Case Last Refreshed

Jul 22, 2025

On March 10, 2025 a case was filed in the jurisdiction of Orange County. Judge William D. Claster presiding.

Filed

Mar 10, 2025

Status

Bankruptcy

Judge

Hon. William D. Claster Trellis Spinner 👉 Discover key insights by exploring more analytics for William D. Claster

Court

Superior

County

Orange County, CA

Practice Area

Torts

Matter Type

Toxic,Environmental

Case Last Refreshed

Dec 16, 2025

On March 6, 2025 a case was filed in the jurisdiction of Orange County. Judge William D. Claster presiding.

Filed

Mar 06, 2025

Judge

Hon. William D. Claster Trellis Spinner 👉 Discover key insights by exploring more analytics for William D. Claster

Court

Superior

County

Orange County, CA

Practice Area

Creditor

Matter Type

Collections

Case Last Refreshed

Jul 22, 2025

On March 6, 2025 a case was filed in the jurisdiction of Orange County. Judge William D. Claster presiding.

Filed

Mar 06, 2025

Judge

Hon. William D. Claster Trellis Spinner 👉 Discover key insights by exploring more analytics for William D. Claster

Court

Orange County

County

Orange County, CA

Practice Area

Labor and Employment

Matter Type

General Employment

Case Last Refreshed

Mar 07, 2025

On February 10, 2025 a case was filed in the jurisdiction of Orange County. Judge William D. Claster presiding.

Filed

Feb 10, 2025

Judge

Hon. William D. Claster Trellis Spinner 👉 Discover key insights by exploring more analytics for William D. Claster

Court

Orange County

County

Orange County, CA

Practice Area

Torts

Matter Type

Automobile

Case Last Refreshed

Aug 29, 2025

On January 6, 2025 a case was filed in the jurisdiction of Orange County. Judge William D. Claster presiding.

Filed

Jan 06, 2025

Judge

Hon. William D. Claster Trellis Spinner 👉 Discover key insights by exploring more analytics for William D. Claster

Court

Orange County

County

Orange County, CA

Practice Area

Torts

Matter Type

Mass Torts

Case Last Refreshed

Feb 24, 2025

On December 31, 2024 a case was filed in the jurisdiction of Orange County. Judge William D. Claster presiding.

Filed

Dec 31, 2024

Judge

Hon. William D. Claster Trellis Spinner 👉 Discover key insights by exploring more analytics for William D. Claster

Court

Orange County

County

Orange County, CA

Practice Area

Labor and Employment

Matter Type

General Employment

Case Last Refreshed

Feb 24, 2025

On December 26, 2024 a case was filed in the jurisdiction of Orange County. Judge William D. Claster presiding.

Filed

Dec 26, 2024

Judge

Hon. William D. Claster Trellis Spinner 👉 Discover key insights by exploring more analytics for William D. Claster

Court

Orange County

County

Orange County, CA

Practice Area

Torts

Matter Type

Mass Torts

Case Last Refreshed

Mar 06, 2025

On December 5, 2024 a case was filed in the jurisdiction of Orange County. Judge William D. Claster presiding.

Filed

Dec 05, 2024

Judge

Hon. William D. Claster Trellis Spinner 👉 Discover key insights by exploring more analytics for William D. Claster

Court

Orange County

County

Orange County, CA

Practice Area

Labor and Employment

Matter Type

General Employment

Case Last Refreshed

Feb 24, 2025

On December 3, 2024 a case was filed in the jurisdiction of Orange County. Judge William D. Claster presiding.

Filed

Dec 03, 2024

Judge

Hon. William D. Claster Trellis Spinner 👉 Discover key insights by exploring more analytics for William D. Claster

Court

Orange County

County

Orange County, CA

Practice Area

Labor and Employment

Matter Type

General Employment

Case Last Refreshed

Mar 13, 2025

On November 27, 2024 a case was filed in the jurisdiction of Orange County. Judge William D. Claster presiding.

Filed

Nov 27, 2024

Judge

Hon. William D. Claster Trellis Spinner 👉 Discover key insights by exploring more analytics for William D. Claster

Court

Orange County

County

Orange County, CA

Practice Area

Labor and Employment

Matter Type

General Employment

Case Last Refreshed

Oct 27, 2025

On November 25, 2024 a case was filed in the jurisdiction of Orange County. Judge William D. Claster presiding.

Filed

Nov 25, 2024

Judge

Hon. William D. Claster Trellis Spinner 👉 Discover key insights by exploring more analytics for William D. Claster

Court

Orange County

County

Orange County, CA

Practice Area

Commercial

Matter Type

Breach of Contract

Case Last Refreshed

Mar 13, 2025

On November 22, 2024 a case was filed in the jurisdiction of Orange County. Judge William D. Claster presiding.

Filed

Nov 22, 2024

Judge

Hon. William D. Claster Trellis Spinner 👉 Discover key insights by exploring more analytics for William D. Claster

Court

Orange County

County

Orange County, CA

Practice Area

Labor and Employment

Matter Type

General Employment

Case Last Refreshed

Mar 13, 2025

On November 14, 2024 a case was filed in the jurisdiction of Orange County. Judge William D. Claster presiding.

Filed

Nov 14, 2024

Status

Judgment (Other)

Judge

Hon. William D. Claster Trellis Spinner 👉 Discover key insights by exploring more analytics for William D. Claster

Court

Orange County

County

Orange County, CA

Practice Area

Administrative

Matter Type

Writs

Case Last Refreshed

Mar 13, 2025