Morn, Pan and Alna

Morn, Pan and Alna are three beautiful young alien women who supposedly crash landed on Earth. In truth though, they are really a trio of vaudeville players known as the Courtney Sisters, hired as larcenous henchwomen to aid the villainous Ben Victor in his scheme to fleece a town of all its government gold. Morn (real name, Maggie) is the main spokeswoman for the "aliens". Falling for the charms of agent James West, to an extent she tries to help him avoid danger.

History
These three "alien" women emerge from a supposed UFO which has been "forced to land" on the outskirts of a western town. They claim to be travelers from Venus, though are actually part of an audacious plot to steal the federal government gold being kept temporarily in the town, guarded by agents James West and Artemus Gordon, as well as some soldiers. Morn decoys Jim at a picnic, while in town the other girls are busy knocking out Arte and the guards with their "outer space" gas guns and helping male villain Ben Victor take the government gold from the safe - carrying it away in a wagon along with a kidnapped Artemus Gordon. After also taking Jim prisoner, the villains plan to blow the 2 federal agents up in the phony UFO.

In the climax of the episode after the male villains are vanquished, Arte gets himself into a wild comical scuffle with the criminal girls in the covered wagon. Morn climbs into the front to join Jim at the reigns and starts to get romantic with him; West matter of factly says to her that all the girls are all going to jail. Later in their special train Jim gets a telegraph message that Pan and Alna have been given 5 - 10 years in jail and Morn 1 year (presumably a lesser sentence because she had, to an extent, tried to help West out).