British Forces
CL Sydney (RAN)—Capt J. A. Collins
2nd DD Flotilla—Capt H. Nicholson
DD Havock
DD Hyperion
DD Hasty
DD Ilex
DD Hero

Italian Forces
2nd Cruiser Division
   Rear-Adm Ferdinando Casardi
CL Bande Nere—Capt Maugeri
CL Bartolemeo Colleoni*—Capt Umberto Novaro

*Ship sunk in this action

Sources:
1. The Naval War in the Mediterranean 1940-1943 by J. Greene & A. Massignani
2. Chronology of the War at Sea 1939-1945 by J. Rohwer & G. Hummelchen
3. The Cruiser Bartolomeo Colleoni by F. Gay & V. Gay