The Night of the Pistoleros - S4-E19
Continuity mistake: Towards the end of the first half of this show, the colonel and West are having a drink inside. Both men's clothes are spotless as they walk to the door to go outside. Once they go through the door, the colonel's jacket is noticeably dirty, especially on its right side. When West turns around from seeing Sgt. Tobin's body, the seat of West's pants is also quite dirty with a small tear in the middle of the seat of his pants. When West walks towards his horse to leave, the seat of his pants is spotless and the rip is gone.
The Night of the Diva - S4-E20
Continuity mistake: In the first scene, the close-up of the train entering the town shows the number 22 and is not painted as West's train is. However, when West enters the box car from the town's train depot, it is his box car. Also, as West enters the boxcar, the backdrop of the outside is not of the train depot but looks more like solid brown paneling.
The Night of the Diva - S4-E20
Continuity mistake: The close-up of the stationary boxcar midway through this episode shows it amid dirt and brown low brush. When the young lady enters, one can see a very green tree immediately outside the door.
The Night of the Diva - S4-E20
Continuity mistake: In the next to the last scene of this show, West removes the mask of the fallen villain - this reveals a woman with long brown flowing hair. However, in all the shots before, this villain had a short haircut.
The Night of the Bleak Island - S4-E21
Continuity mistake: In the opening scene of the storm at sea, the first shot of the large boat shows it to have several windows in the front. When the boat docks, it is evident this is a smaller windowless boat.
The Night of the Bleak Island - S4-E21
Revealing mistake: Towards the end of this episode, West enters a small house. As the door opens, there is a small piece of furniture with drawers in the front and a red and white checker cloth on top. During the fight scene in this room, this chest of drawers is broken to reveal it is a prop that had the drawers painted on the front.
The Night of the Cossacks - S4-E22
Continuity mistake: A bit after midway through this episode, while in the cave, West, wearing a blue shirt, is rolled into a hole on the ground. After the fall, he is wearing a white shirt. There is a close-up of West reaching into his jacket for rope. The close-up shows West wearing a blue vest. He is wearing the white shirt (no vest) as he begins to climb out of the hole, but when he gets out of the hole he is wearing a blue shirt (no vest).
The Night of the Tycoons - S4-E23
Continuity mistake: In the last scene, there is close-up shot of the back of West's box car around dusk in the middle of dry brush. When Lionel opens the door to enter, the background is nighttime with a barely visible tree by the door.
The Night of the Tycoons - S4-E23
Continuity mistake: Three fourths into this episode, West fights several clowns in the bar. West's jacket becomes very dirty around his upper left chest and left knee areas. West runs through a nearby door into the hallway with completely clean clothes. As West is freeing Lionel, only the lower left knee is dirty; the jacket is still clean. The next full shot of West has the knee area clean.
The Night of the Tycoons - S4-E23
Continuity mistake: The first scene shows West riding into town wearing a blue shirt, a black kerchief, blue corduroy jacket with black leather lapels, black chaps, and a large belt buckle. After he gets off his horse to start walking, the next close-up of him walking shows him wearing a fancy blue vest, a blue neck piece, different blue jacket with blue lapels, and no chaps. West wears this for the remainder of the scene.
The Night of the Tycoons - S4-E23
Revealing mistake: The exact footage is used in the beginning of the first shot of this episode as well as the when the opening credits have stopped showing - two women walking on the lower right of the screen, two men riding side by side away from the camera, and the coach with one dark and one light colored horse riding into the camera on the screen's left.
The Night of the Plague - S4-E24
Other mistake: In the last fight scene, West runs uphill from the cave entering the scene from the most east side of the screen. There is a bad guy on the ground to West's right side as West is running uphill. The villains chase West, but their shot shows them entering the same scene from the middle of the screen with the guy on the ground on their left side.
The Night of the Plague - S4-E24
Continuity mistake: The last scene shows the back of the boxcar amid dirt and brown/mustard colored short grass. When Ms. Averi Trent opens the door to meet her fiancé, we see a lush green tree by the door.