Jeffrey Matthew Settle is an American actor. He is known for playing Captain Ronald Speirs on the 2001 HBO miniseries Band of Brothers and Rufus Humphrey on the CW teen drama series Gossip Girl.

Lieutenant Colonel Ronald Charles Speirs was a United States Army officer who served in the 506th Parachute Infantry Regiment of the 101st Airborne Division during World War II. He was initially assigned as a platoon leader in B Company of the 1st Battalion of the 506th Parachute Infantry Regiment. Speirs was reassigned to D Company of the 2nd Battalion before the invasion of Normandy in June 1944 and later assigned as commander of E Company during an assault on Foy, Belgium, after the siege of Bastogne was broken during the Battle of the Bulge. He finished the war in the European Theater as a captain. Speirs served in the Korean War, as a major commanding a rifle company and as a staff officer. He later became the American governor for Spandau Prison in Berlin. He retired as a lieutenant colonel.