• Baltimore's first female mayor, she assumed the position in January 2007 after Martin O'Malley became governor. She was re-elected later that year.
• The single mother of two became the first African-American woman elected Baltimore City Council president in 1999. She was first elected to the council in 1987.
• She began her career as a kindergarten teacher at Steuart Hill Elementary School and spent 17 years as an international trade specialist with the Maryland Department of Business & Economic Development.
Arnold M. Weiner
• Dixon's lawyer is one of Baltimore's top defense attorneys.
• He served as lead defense attorney in the prosecutions of Maryland Gov. Marvin Mandel and Rep. Edward Garmatz. Mandel's conviction on mail fraud and racketeering charges was vacated in 1987. Bribery charges against Garmatz were dismissed because the prosecution was based on forged evidence.
• The former assistant U.S. attorney and Maryland assistant attorney general was referenced in the Laura Lippman novel Butchers Hill as a top Baltimore attorney. His daughter, Deborah Weiner, is a reporter for WBAL-TV.
Robert A. Rohrbaugh
• The Maryland state prosecutor has led a three-year investigation into City Hall corruption, culminating in this week's indictments of Mayor Sheila Dixon, developer Ronald H. Lipscomb and City Councilwoman Helen L. Holton.
• The former assistant federal prosecutor and private Montgomery County attorney was appointed to his current post by Gov. Robert L. Ehrlich Jr. in 2004.
• He took a leave from his law practice in 1997 to assist a congressional investigation into allegations of illegal contributions to former President Bill Clinton's re-election campaign and is the former president of the Montgomery County Republican Club.
Ronald H. Lipscomb
• The prominent Baltimore developer had a romantic relationship with Dixon in 2003-2004.
• As head of Doracon construction company, he helped develop the Four Seasons hotel and condominium tower and the $90 million Spinnaker Bay residential tower in Harbor East.
Helen L. Holton
• The city councilwoman from the 8th District has served since 1995.
• She is a certified public accountant and chaired the council's Taxation and Finance Committee until this week, when she was removed pending the resolution of charges against her.