Blender

https://www.youtube.com/watch?v=8hspuJw4xiM

The bad Jeannie...her name is also Jeannie

Jeannie's sister, mentioned in a second-season episode (also named Jeannie and also portrayed by Barbara Eden [albeit in a brunette wig]), proves to have a mean streak starting in the third season (demonstrated in her initial appearance in "Jeannie or the Tiger?" [September 19, 1967]), repeatedly trying to steal Tony for herself, with her as the real "master". Her final attempt in the series comes right after Tony and Jeannie get married, with a ploy involving a man played by Barbara Eden's real-life husband at the time, Michael Ansara (in a kind of in-joke, while Jeannie's sister pretends to be attracted to him, she privately scoffs at him). Jeannie's sister wears a green costume, with a skirt rather than pantaloons.

She was in episode 125

http://en.wikipedia.org/wiki/List_of_I_Dream_of_Jeannie_episodes


Jeannie's sister appears
Episode 2 of season 3
#62 is episode 1 of season 3
#72            Jeannie's sister tries to steal Tony by making Jeannie think she is a jinx to Tony and that she must leave him for 15 years. Before she does, Jeannie fixes Tony up with an attractive young lady, and her devilish sister stops at nothing to sabotage their outings together.
#79          When Jeannie's sister finds out Jeannie is locked in the safe, she arranges to have assignments between Tony and another astronaut (Mike Farrell) swapped, sending Tony to the Middle East. When he goes to Baghdad searching for the head genie, she captures Tony and puts him in a birdcage. When Roger tries to rescue Tony, he is also imprisoned in the birdcage. She is found out by her own master, Habib (Ted Cassidy), who forces her to let them go. Meanwhile, the safe is picked up and put on another rocket.

#85 Jeannie's sister gives her a potion to change her allegiance to Roger, causing her to be very mean and hateful towards Tony.

63 "Jeannie or the Tiger?" Hal Cooper James Henerson September 19, 1967 Jeannie gets homesick and decides to have her sister visit. After seeing a picture of Tony, the `devious and cunning sister traps Jeannie in her bottle and tries to make Tony her master.

72 "Tony's Wife" Claudio Guzman Christopher Golato[n 2] November 28, 1967 Jeannie's sister tries to steal Tony by making Jeannie think she is a jinx to Tony and that she must leave him for 15 years. Before she does, Jeannie fixes Tony up with an attractive young lady, and her devilish sister stops at nothing to sabotage their outings together.

79

"Genie, Genie, Who's Got the Genie? Part 3"

Hal Cooper

James Henerson

January 30, 1968

When Jeannie's sister finds out Jeannie is locked in the safe, she arranges to have assignments between Tony and another astronaut (Mike Farrell) swapped, sending Tony to the Middle East. When he goes to Baghdad searching for the head genie, she captures Tony and puts him in a birdcage. When Roger tries to rescue Tony, he is also imprisoned in the birdcage. She is found out by her own master, Habib (Ted Cassidy), who forces her to let them go. Meanwhile, the safe is picked up and put on another rocket.