A Starfleet lieutenant serving as Admiral William Ross's aide on the USS Bellerophon during the conference on Romulus in 2375.
Lieutenant Wheeler appears in the Deep Space Nine episode Inter Arma Enim Silent Leges. She travels to Romulus aboard the USS Bellerophon as aide to Vice Admiral Ross, who leads the Federation delegation to a wartime conference that Doctor Bashir is also attending.
Bashir has been pressed by Sloan of Section 31 to study the Tal Shiar chairman Koval, and he takes his suspicions to Ross. When he next tries to reach the admiral, it is Wheeler who tells him that Ross has collapsed with an aneurysm and can see no one.
The news leaves Bashir isolated at the critical moment and pushes him towards Senator Cretak. Only afterwards does he work out that the admiral's illness was rather too convenient.