Patrick Roddy has been named senior producer for the Sunday morning news show "This Week With David Brinkley." Roddy was formerly producer of the show. He joined ABC News in 1975 as a tape editor. Since that time, he has coordinated coverage of the 1980 presidential elections and inauguration and the return of the American hostages from Iran.

Veronique Rodman has become coordinating guest producer for "This Week With David Brinkley." Rodman was most recently project coordinator for Georgetown University's Center for Strategic and International Studies. She was staff assistant to former secretary of state Henry Kissinger from May, 1978, to October, 1979.

Ruth Kaplan has joined WETA-TV as director of communications. Kaplan has been head of press relations for the Royal Shakespeare Co. in London and Stratford-on-Avon, a job in which she was involved in the production of "The Life and Adventures of Nicholas Nickleby." She has also been a consultant for WNET-TV in New York.

David Cureton has become a news correspondent for Mutual Broadcasting System. He was previously morning anchor and assistant news director for WIS Radio, a "news-talk" station in Columbia, S.C.

Judy Lynn Jaicks has been promoted to associate publisher of the Armed Forces Journal International. She was formerly assistant to the publisher.

Kathleen Wilmes Herring has been promoted to vice president and creative director of MDB Communications Inc., a graphic design and advertising agency in Rockville.

Paul L. Wexler has been named vice president of marketing for GTE Business Communications Systems Inc., located in Springfield. Wexler was previously manager of marketing for the General Electric Co. data communication products department.

Alan Smith, anchorman for the 10 p.m. news on WTTG-TV for the past 12 years, has been appointed radio and television producer for the American Chemical Society. He will produce "Man and Molecules," a weekly radio program. In a related development, Donald F. Rhamy has been named radio and television manager for the society.

Edward A. Gallagher has been reappointed chairman of Western Union International Inc. after its acquisition by MCI. In addition, Nathan Kantor was elected president of Western Union International, replacing Rosario P. Romanelli. Kantor was previously vice president of national field operations for MCI.

M. John Lubetkin has been appointed vice president and general manager of the MetroVision Inc. cable television operations in Prince George's County. MetroVision has headquarters in Atlanta. Lubetkin was formerly vice president of Matrix Enterprises.

Gerry Nettleton, previously director of public relations for Bonwit Teller, has been named a senior associate for van Kloberg & Associates. Gregory Baker Wolfe, president of Florida International University, and Mary Dent Crisp, formerly with the Republican National Committee, have also joined the firm.

E. Kendall Lorenz of the accounting firm Lorenz and Lorenz has been elected to the Phillips Publishing Inc. board of directors. Lorenz is also chairman of the board of the construction firm Howard P. Foley Co.