| William J. Callahan | |
|---|---|
| Acting Director of the U.S. Secret Service | |
|
In office March 4, 2017 – April 25, 2017 |
|
| President | Donald Trump |
| Preceded by | Joseph Clancy |
| Succeeded by | Randolph Alles |
William J. "Bill" Callahan is the Deputy Director of the United States Secret Service. He served as the Acting Director from March 4, 2017 until April 25, 2017.