Mark O'Neill is the youngest son of former NBA Los Angeles Lakers trainer Frank and Mother Jean O'Neill. Mark started his professional career as an assistant to his father with the Los Angeles Aztecs of the North American Soccer League prior to joining the National Hockey League Los Angeles Kings in 1979.

Mark served as a trainer in 1979 and equipment manager from 1980-1993 with the NHL Los Angeles Kings hockey club sharing duties coordinating hockey equipment, supplies, maintenance, repairs and inventory used by the players.

During his time in Los Angeles, Mark also served as a basketball trainer at practice sites during the 1984 Summer Olympics at the Forum in Inglewood. In 1986, Mark traveled to the Soviet Union to work as equipment manager for team Canada during the World Ice Hockey Championships tournament at the CSKA Ice Palace in Moscow.

In 1981, Mark was a technical advisor for the fact-based film Miracle on Ice and provided wardrobe and equipment expertise for the 1984 HBO cable TV network American comedy series 1st and Ten.

In 1993, Mark left the Los Angeles Kings to become the first Head Equipment Manager of the Anaheim Mighty Ducks during the inaugural 1993-1994 season.

In 1998, Mark worked as equipment manager at the NHL All-Star game in Vancouver, British Columbia. In 1998, Mark also worked as the equipment manager for USA Hockey in Switzerland at the IIHF World Championships. In 2002, Mark worked at the Easton service center at the Salt Lake City Olympics and in 2010 he also worked the service center at the Vancouver Olympics maintaining gear for the hockey athletes competing in Canada.

Mark retired from the National Hockey League in 2007 after the Western Conference Anaheim Ducks won their first Stanley Cup Championship defeating the Ottawa Senators in five games at the Honda Center in Southern California.

Mark O'Neill completed 29 seasons and 2,250 games in the National Hockey League.

Mark is still working in hockey today as a PHATS-SPHEM vendor with Jan-Al Cases, currently in his 8th year as sports manger. Jan-Al manufactures road cases, flight cases, wardrobe cases, etc for the NHL, MLB, NFL, NCAA. He also provides cases for professional musicians such as

Imagine Dragons, Fleetwood Mac, KISS and others.

Mark currently resides in Las Vegas, Nevada. He has two sons, Daniel and Aidan, daughter, Audrey and two grandchildren Raya & Nessa O'Neill.

Doug Shearer spent 35 years in the National Hockey League, including 11 seasons with the Anaheim Ducks as Head Equipment Manager from 2007-2018 while serving in the same capacity for the Washington Capitals from 1983-2006.

While with the Capitals, Shearer saw the club advance to the Stanley Cup Final during the 1997-1998 season. He joined the Capitals organization at the start of the 1981-1982 season, serving as the head trainer for the Hershey Bears, Washington’s primary affiliate of the American Hockey League. Shearer also had the privilege to join Team USA on several occasions as the head equipment manager, including the 1997 World Championship in Finland, the 2002 Olympic Winter Games in Salt Lake City, where the team won the Silver Medal; and the 2003 World Championship in the Czech Republic, where Team USA won the Bronze Medal. In addition, he served as equipment manager for the 1999 NHL All-Star Game in Tampa, following Washington’s appearance in the Stanley Cup Final.

Shearer served with pride as the first President of the Society of Professional Hockey Equipment Managers (SPHEM) when the athletic trainers (PHATS) and SPHEM united under one umbrella to become PHATS/SPHEM. Doug served two consecutive terms from 1996 to 2004 and again from 2005 to 2006. His leadership was instrumental in the growth of SPHEM.

A native of Salisbury, N.C., Shearer moved to Elizabethtown, P.A. in 1971, where he attended High School and was Captain of the Football and Track Teams during his Senior year. He graduated from Elizabethtown Area High School in 1976 and is a 1981 graduate of West Chester State College in West Chester, PA. Shearer holds a Bachelor of Science degree in Health and Physical Education. In his spare time, Doug enjoys boating, fishing, hunting, and woodworking.

Walker originally joined the Duck in 2017-18 as the Head Athletic Trainer with the San Diego Gulls (AHL). He has been the Ducks Assistant Athletic Trainer from 2018-2023. The Chandler, AZ native previously served as the primary athletic trainer for Arizona State University’s hockey program from 2015-17. During that same timeframe, he also worked as a staff athletic trainer for the Arizona Coyotes. Walker, a BOC Certified Athletic Trainer and NASM Corrective Exercise Specialist, also spent four years with the ASU golf program (2013-17), one season with the Sun Devil softball team (2014-15) and three seasons with the Pac-12 football team (2011-14). Walker earned a bachelor’s degree in athletic training from Marietta College and a master’s degree in Higher Education from Arizona State University. Chad and his wife, Becca, reside in Irvine with their son, Jackson (6).