The phrase "acted as executive" is correct and usable in written English.
It can be used to describe someone who performed the duties or functions of an executive role, often in a temporary or informal capacity.
Example: "During the interim period, she acted as executive, overseeing the daily operations of the company."
Alternatives: "served as executive" or "functioned as executive".
Iannucci, 48, acted as executive producer while trying to adapt the hit BBC show for an American audience.
The band gave the project its blessing and acted as executive producers, opening up private collections of photos and film footage.
The nation has had a long tradition of international kidnappings – including one South Korean film director who was imprisoned until he agreed to make a series of bad movies for Kim Jong Il, who acted as executive producer.
The records that comprise this collection primarily encompass the years in which Edelstein acted as executive assistant and Chief of Legislative Staff to Senator Herbert H. Lehman, 1949-1956.
Robinson served as Youth Ministries Coordinator for the seven Episcopal dioceses in the Episcopal Province of New England from 1978 to 1985 and acted as executive secretary for the province from 1983 to 2003.
The US marshal Raylan Givens, a secondary character who appeared in both Pronto (1993) and Riding the Rap, later became the focus for the TV series Justified, for which Leonard acted as executive producer.
Mr. Victori will receive $500,000 for his next project for YouTube, and Mr. Scott and Mr. Fassbender will act as executive producers.
Stephen Garrett and Jane Featherstone, joint managing directors of Kudos, the UK independent producer behind Life on Mars, will also act as executive producer of the American version.
Ms. Milford, who will act as executive director of the new center, said she insisted that at least half of the fellows come from outside the academy.
Shortly thereafter, in the spring of 1994, Mr. Kyle -- then working for the Wonders International Cultural Series in Memphis -- was recruited to act as executive director.
