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Thon Beck Vanni Callahan & Powell, A Professional Corporation

HELPING Victims RECOVER Maximum COMPENSATION For Their Injuries
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Pasadena, California accident & injury law firm

Personal Injury and Wrongful Death firm in Los Angeles County

The injured victims of negligence may need extraordinary legal representation to help them recover the compensation they are entitled to by law. At Thon Beck Vanni Callahan & Powell, our award-winning Pasadena personal injury attorneys consistently produce favorable results for our personal injury clients. We represent clients in cases that involve traffic, boating, and aircraft accidents; defective and dangerous consumer items; premises liability, workplace accidents, and negligent security accidents; slip- or trip-and-fall injuries, traumatic brain injuries, and wrongful death; medical malpractice and nursing home abuse; and dog bites and other animal attacks.

If you are injured because another person was negligent in a traffic accident, a slip-and-fall accident, an incident of medical malpractice, or if you’re injured because someone else was negligent in any other type of accident scenario in Southern California, seek medical attention immediately. You will need the paperwork generated by a medical examination if you file a personal injury claim to recover compensation for your medical expenses and lost wages. The next step is scheduling a free legal consultation with a personal injury lawyer at Thon Beck Vanni Callahan & Powell by calling our Pasadena law offices at 626-208-9906.

At Thon Beck Vanni Callahan & Powell, our outstanding team of personal injury attorneys includes Gregory R. Vanni, who was recognized in 2014 by the Consumer Attorneys of California with their highest honor, the Consumer Attorney of the Year Award; Kevin K. Callahan, who is a past president of the Pasadena Bar Association; Daniel P. Powell, who has been named as a “Super Lawyer” in the Los Angeles Magazine survey of his peers each year for the last sixteen years; and Michael P. O’Connor, who is a California personal injury lawyer with more than twenty years of experience and a past president of the Irish American Bar Association.

Our team of personal injury lawyers also includes Raffi H. Ohanian, who was named a “Rising Star” in 2017 and 2018 by his peers, and a “Super Lawyer” in 2019 and 2020; and retired partner Thomas Patrick Beck, who is an extensively published legal writer and the recipient of a number of awards and honors from legal and community associations. For more than thirty-five years, our success at Thon Beck Vanni Callahan & Powell has been the direct result of each attorney’s personal commitment to provide clients with high-quality, effective legal representation while maintaining an unparalleled reputation for accessibility, honesty, and integrity.

The law offices of Thon Beck Vanni Callahan & Powell are set in the heart of Pasadena at 140 South Lake Avenue #208. We offer flexible appointment hours and off-site visits when needed. There is never a fee to talk to an attorney, and we work on a contingent fee basis, so you pay no attorney’s fee until and unless we recover compensation on your behalf. If you’ve been injured by the negligence of an individual, a business, or a government agency, call Thon Beck Vanni Callahan & Powell today at 626-208-9906, or contact us online to schedule a free consultation.

Thon Beck Vanni Callahan & Powell
140 South Lake Avenue #208
Pasadena, California 91106

Our Attorneys

Gregory R. Vanni Photo

Gregory R. Vanni

Gregory R. Vanni is the managing partner of Thon Beck Vanni Callahan & Powell in Pasadena, California. He specializes in serious personal injury cases and represents clients throughout California.

Mr. Vanni earned his Bachelor of Arts degree (magna cum laude) from California State Polytechnic University and his Juris Doctor from Loyola Law School. He is a past president of the Pasadena Bar Association, and a member of the Consumer Attorneys of California, Consumers Attorneys of Los Angeles, Italian American Bar Association, and the American Association for Justice. Mr. Vanni serves on the Board of Directors for Loyola Law School and sits as the Vice-President on the Board of Directors for Foothill Unity Center.

Kevin K. Callahan Photo

Kevin K. Callahan

Kevin K. Callahan is a partner at Thon Beck Vanni Callahan & Powell. A 1981 graduate of Brown University, Mr. Callahan earned his J.D. from the University of California at Los Angeles School of Law in 1984. He was elected as the President of Pasadena Bar Association in 2015, and has served as the Chair of the Association’s Litigation Section since 2015. His service for the legal community also includes sitting for many years on the Litigation Section Executive Committee of the Los Angeles County Bar Association working on funding, administrative, and professional issues. He is also a member of the American Association for Justice, the Consumer Attorneys of California and the Consumer Attorneys of Los Angeles.

As a result of his work for clients and his service to colleagues within the legal community, Kevin K. Callahan was designated as a Super Lawyer in a Los Angeles Magazine survey of his peers in 2006 and again each year from 2008 through 2021. In 2015, 2018 and 2021, he was also named one of the “Top 100” Southern California Super Lawyers. Kevin K. Callahan has also been named a top attorney in the personal injury field by Pasadena Magazine each year from 2010 through 2016, each year the honor has been awarded. Mr. Callahan is also married and the father of three boys, and has been an active Little League coach and administrator for many years.

Daniel P. Powell Photo

Daniel P. Powell

With more than four decades of legal experience, Daniel P. Powell is a partner at Thon Beck Vanni Callahan & Powell and a member of the Los Angeles County Bar Association, the Consumer Attorneys Association of Los Angeles and the American Board of Trial Advocates with the rank of Advocate. His practice focuses primarily on catastrophic personal injury, product liability, premises liability and wrongful death.

Mr. Powell earned his B.S. degree from the University of California in 1975 and his Juris Doctorate from the University of La Verne College of Law in La Verne, California in 1978. Mr. Powell has earned an AV preeminent peer review rating for the last 20 years, and is designated as Super Lawyer in the Los Angeles Magazine survey of his peers each year from 2005 through 2021.

Michael P. O’Connor Photo

Michael P. O’Connor

Michael P. O’Connor is an experienced trial attorney with over 20 years of experience representing victims of catastrophic accidents and wrongful death. Mr. O’Connor handles cases involving, but not limited to, the following: automobile, trucking, motorcycle, and pedestrian accidents; slip trip and falls; dangerous and defective products; construction site accidents; dog bites; traumatic brain injuries and spinal cord injuries. Mr. O’Connor has consistently been named Super Lawyer by Los Angeles Magazine and Top Personal Injury Attorney in Pasadena Magazine. He serves on the Board for Pasadena Bar Association and Chairman of its Litigation Section. He is also the Past-President of the Irish American Bar Association.

Mr. O’Connor has obtained multiple million-dollar verdicts and settlements for his clients and their families. He is very passionate about serving his clients and obtaining justice for them.

Raffi H. Ohanian Photo

Raffi H. Ohanian

Born and raised in Pasadena, California, Raffi H. Ohanian focuses his practice in the areas of catastrophic personal injuries. He was admitted to the California Bar in 2007 after earning a J.D. that year from Southwestern University School of Law and obtained a B.A. from Loyola Marymount University in 2004. While in law school, Mr. Ohanian was the president of the Armenian Law Students Association and was actively involved in the local community. While at Loyola Marymount University, Mr. Ohanian studied in an elite honors program in Oxford, England at Queen’s College. Prior to joining Thon Beck Vanni Callahan & Powell, Mr. Ohanian was a Senior Associate at a nationally-known, Los Angeles-based law firm. Mr. Ohanian was also voted a “Rising Star” in 2017 and 2018 by his peers, and escalated to the title of “SuperLawyer” in 2019 and 2020.

140 S Lake Ave, #208, Pasadena, CA 91106
(626) 795-8333
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