Cassandra "Cassi" McWilliams Chandler (born ca 1958) is a retired special agent and spokesperson for the United States Federal Bureau of Investigation.

[1] Cassandra McWilliams went on to major in journalism and English at Louisiana State University, with the ambition of becoming a television news anchor before attending law school.

[2] As she planned, McWilliams went on to work as a television reporter and news anchor for a NBC affiliate in Baton Rouge, Louisiana.

[3] While attending law school, McWilliams was working part time in a newsroom when a suspected bank robber called the station asking to be put on the news.

Chandler described an early encounter in the field: "I remember once while a new agent in New Orleans, I was working on huge financial institution fraud cases.

I walked in being like everybody else and people respected that"[6]In 1994, she was named as a supervisor of white collar crimes in the San Diego field office.

In 2005, Robert S. Mueller III appointed Chandler as the special agent in charge of the FBI's field office in Norfolk, Virginia.

[13] After retiring from the FBI, Chandler founded Vigeo Alliance, a company focusing on leadership and risk management.