| Captain | Black | Halfoat's captain. |
| Colonel | Cargill | General Peckem's troubleshooter. |
| Chuck | Cathcart | Major Major's executive officer. |
| Lt. | Coombs | The former assistant intelligence officer. |
| Nurse | Cramer | Nurse Duckett's best friend. |
| Major | Danby | The fidgeting group of operations officer. |
| Dan | Daneeka | The flight surgeon. Yossarian's friend. |
| Mrs. | Daneeka | Doc Daneeka's wife. |
| Nurse | Duckett | One of the ward nurses who didn't like Yossarian. |
| Major | Duluth | The former squadron commander. Deceased. |
| Dori | Duz | Scheisskopf's wife's friend. The girl that Yossarian loves. |
| Lt. | Engle | Scheisskopf's colleague. |
| Captain | Flume | The squadron's public relations officer. |
| White | Halfoat | Captain Black's assistant. Doc Daneeka's housemate. |
| Hungry | Joe | One of Yossarian's colleagues. A crazy officer. |
| Corporal | Kolodny | Captain Black's assistant. Doc Daneeka's housemate. |
| Lt. Col | Korn | Cathcart's Lt. Colonel and right-hand man. |
| Maid in | Lime-colored Panties | The maid who falls in love with Yossarian. |
| C.I.D | Man | One of Yossrian's co-patients. The investigator of Yossarian's excessive censoring. |
| Major | Metcalf | One of the judges in Clevinger's trial. |
| Milo | MinderBinder | The mess officer who bombed the squadron. |
| Colonel | Moodus | General Dreedle's son-in-law. |
| Lt. | Mudd | The dead man in Yossarian's tent. |
| Lt. | Nately | Yossarian and Chaplain's common friend. |
| Colonel | Nevers | The colonel who got killed. |
| P.P | Peckem | The general who desperately wants to take over General Dreele's position. |
| Captain | Plitchard | The captain-in-charge of squadrons. |
| Kid | Sampson | The underaged soldier. |
| Major | Sanderson | The neurotic psychiatrist. |
| Mrs. | Scheisskopf | Scheisskopf's wife. |
| R.O | Shipman | The group chaplain. Yossarian's friend. |
| Corporal | Snark | The boy who poisoned the squadron. |
| Dr. | Stubbs | The doctor in Dunbar's squadron. |
| Sgt. | Towser | Major Major's assistant. |
| Lt. | Travels | Scheisskopf's colleague. |
| Corporal | Whitcomb | R.O. Shipman's assistant. |
| Soldier in | White | Yossarian's fully bandaged co-patient. |
| Nately's | Whore | The whore in Rome Nately falls in love with. |
| Captain | Wren | Captain Plitchard's colleague. |
| John | Yossarian | A pilot captain. Protagonist. |
| Aardvaark | | Yossarian's plump, pipe-smoking navigator. |
| Appleby | | One of the officers who was good at everything. |
| Clevinger | | Yossarian's colleague. |
| Dobbs | | Yossarian's associate who went crazy in mid air. |
| Dreedle | | The commander of the U.S. Army Air Corps in Pianosa. |
| Dunbar | | An airman. Yossarian's friend. |
| Gus | | Doc Daneeka's orderlies. |
| Havermeyer | | Yossarian's colleague and the best bombardier. |
| Huple | | Hungry Joe's roommate. A pilot. |
| Knight | | The turret gunner in Yossarian's plane. |
| Kraft | | The man who was killed at the bombing. |
| Luciana | | Yossarian's lover. |
| Major Major | | The squadron commander. Aka: Caleb Major. |
| McWatt | | Clevinger's former roommate. A pilot. |
| Michaela | | The maid of Yossarian's squad in Rome. |
| Orr | | Yossarian's roommate. A bomber pilot. |
| Popinjay | | The clerk. |
| Sammy | | The tail gunner on Yossarian's bomber. |
| Scheisskopf | | A training unit commander for Yossarain and Clevinger. |
| Snowden | | The radio gunner. Deceased. |
| Texan | | Yossarian's co-patient. |
| Wes | | Doc Daneeka's orderlies. |
| Wintergreen | | The clerk at 27th air force. |
