Gigi Perreau appeared in two episodes of The Rifleman ― Heller as Heller Chase, she almost killed her evil step-father ― Death Trap as Carrie (Vicki) Battle, she was the daughter of an ex-gunslinger turned doctor.
Here is an article from Look Magazine June 21, 1960.
The Star Stands In — from Heller
Was there talk of Heller being a spin-off?
Read Gigi Perreau full interview from Western Clippings
On the set of The Rifleman - Again!
Bloopers for these episodes & other episodes
around The McCain Ranch