Continuity mistake: Heyes is shot from the right and falls from his horse, grazed on the right side of the head. When he's recovering, however, the wound has moved to the left side of his head. (00:13:00)
Continuity mistake: A wheezing Deputy Treadwell races across the street to the saloon to collect a posse. On the way, he's trying to buckle on his gun-belt, but he fumbles it and his gun falls to the ground near the hitching rail. No one picks it up, but he somehow has the gun back in his holster again when he runs out to ride away seconds later. (00:16:25)
Never Trust an Honest Man - S1-E14
Continuity mistake: Curry's shaving cream is smeared over his upper lip. Then it isn't. Then it is again. (00:10:40)
Continuity mistake: During the stage robbery, the bandits take everyone's guns, including Heyes' and Curry's. But when they unhitch the team horses and gallop after the bad guys, Heyes and Curry have guns again. (00:03:20 - 00:08:10)
Continuity mistake: Heyes and Curry have waded into the lake to recover the chest, so their pants are soaking wet up to hip level. But just a few minutes later, they're both completely dry again. (00:31:45)
Continuity mistake: The number of bad guys in Weaver's gang keeps changing. There are ten riders waiting on the ridge. All ten ride down the hill, but only five arrive at the bottom to rob the stage. Seven ride away afterward, but when they head off again to capture Heyes and Curry, there are only six. And when they surround the way station, there are again seven of them. (00:08:00)
Continuity mistake: Heyes is tied to a chair during the assault on the stage way station. But somehow his hair combs itself neatly back after being all over his forehead. A few shots after that, it's messy again. (00:30:40 - 00:33:05)
Continuity mistake: At the bank, we see Curry empty the jewel bag onto Binford's desk. Ten stones fall out. But in subsequent close-ups, there are twenty. Despite this, Heyes asks Binford to write a receipt for "ten little stones that sparkle and glitter a lot." (00:12:20)
Return to Devil's Hole - S1-E7
Continuity mistake: Clara's long hair is a windblown mess. But when Heyes ties the blindfold at the back of her head, her hair is suddenly neatly combed. One shot later, it's unkempt again. (00:17:15)
Continuity mistake: The first time Leslie visits Heyes and Curry in jail, they are in two cells right next to one another, Curry lying on a bunk in the cell to the left. The second time she visits to break them out, they are still in two cells next to one another, but the cell with the bunk is on the far left, Curry is the in middle cell, and Heyes is in the cell on the right. When Leslie points her gun at the lock of Heyes's cell door, he takes cover behind Curry, who is suddenly in the same cell with him with no bars between them. When Leslie brings Heyes the letter spike to use in picking the lock, the two are back in different cells with no bunk visible.
Continuity mistake: When they've opened the chest, Leslie pays Heyes $1500 in cash, which he's holding in his hand when the gang of robbers gallops up. In the next shot, Heyes turns and raises his hands, and the cash he was holding has disappeared. (00:31:40)
Continuity mistake: Having borrowed the valuable uncut stones from Soapy, Heyes and Curry don't seem able to keep a very good accounting of them. Ten are sent out for evaluation, and twenty-one more are used to salt the fake diamond field. They should be returning thirty-one nuggets to Soapy at the end of the con game. Yet there are fewer than twenty diamonds on the table when Soapy empties the cloth bag. (00:49:50)
Return to Devil's Hole - S1-E7
Continuity mistake: Heyes takes Clara's handbag and dumps its contents on the table. A bundled stack of bills at least an inch thick falls out. Several shots later, though, the pile of money is much thinner, about half its original size. (00:08:25 - 00:10:10)
The Legacy of Charlie O'Rourke - S1-E15
Continuity mistake: While Heyes and Curry talk to Charlie in his cell, Curry's hands change positions on the bars every time the camera angle reverses. (00:04:45)
Continuity mistake: The rifle Curry slings to his saddle when he sets off after Jake disappears during his journey, then reappears just in time for him to use it in getting the drop on Jake. (00:42:40 - 00:44:25)
Continuity mistake: During the scene in the gentleman's club, Grace makes an instant costume change. When she's inside the club room, she has on a white lace dress and hat. When she and Heyes walk the drunk Sylvester out into the hall, she's wearing a bright red dress instead. (00:12:30 - 00:13:20)
Continuity mistake: When the bad guys rough up Heyes, his hair is disarrayed. But when the shot cuts, it's neatly combed again. (00:13:00)