
Gregory R. Vanni is the managing partner of Thon Beck Vanni Callahan & O’Connor in Pasadena, California. He specializes in serious personal injury and wrongful death cases 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, Consumer Attorneys of Los Angeles and the Italian American Bar Association. Mr. Vanni serves on the Board of Directors for Loyola Law School and as the Vice-President on the Board of Directors for Foothill Unity Center.
HONORS AND VICTORIES
Mr. Vanni was honored by the Consumer Attorneys of California with their highest accolade, the Consumer Attorney of the Year Award. Mr. Vanni has also been awarded the Avvo Clients’ Choice Award. Over the course of his career, he has achieved significant victories in high profile cases, including a recent $30 million jury verdict in a drunk driver case, a $23.2 million recovery for victims of a collapsing conveyor system, a $20 million settlement for a serious automobile crash, a $10 million settlement for a motorcycle accident victim, and an $8.1 million recovery against the State of California and a trucking company in a motorcycle crash. Mr. Vanni is a top-rated attorney selected to Super Lawyers continuously from 2004 through 2025. In 2021 and 2024, Mr. Vanni was also named one of the “Top 100” Southern California Super Lawyers. He is honored to be retained by clients seeking highly qualified and professional legal assistance.
RESPECT, COURTESY, AND CONSIDERATION
When you become our client at Thon Beck Vanni Callahan & O’Connor, you’ll be represented by an experienced Pasadena personal injury attorney, treated with complete respect, and provided with every possible courtesy and consideration. We explain how the law impacts your case, and we keep you informed as your claim moves through the legal system. Get the trustworthy legal representation you need from a skilled injury attorney who is ready to put in the work for you and your case; if you’ve been injured in Pasadena or anywhere throughout southern California, call Thon Beck Vanni Callahan & O’Connor today at 626-795-8333, email me at [email protected] or contact us online right now using the contact form to schedule a free initial consultation.
RECENT RESULTS
- Rear-End Freeway Collision: $30,671,165.63
- Auto v. California: $20 million
- Dangerous Roadway Crash: $13,325,000
- Automobile Products Liability Case: $9,149,999
- Product Liability: $5 million
- Dangerous Public Property Case: $4,800,00
- Dangerous Public Property Case: $2,350,000
- Pedestrian v. Mass Transit: $2,250,000