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This is a list of character actors whose last name ending in the letter G has appeared on The Rifleman — One Time Only. Whether they have appeared one time only or 168 times, they are just as important as the main characters and/or anyone else involved in The Rifleman. This is just a small tribute to those great many characters actors.
This section of character actors is dedicated to each & everyone one of the character actors that appeared on The Rifleman.
 They're among the most popular and recognizable actors. They may not be A-list stars, but they do something many actors don't. They worked all the time.

G
Duane Grey ― Raymond Guth
Gary Gadson ― Kathy Garver
James Gavin ― Tom Gilson
Regina Gleason ― James Gonzalez
Elyse Gordon  ― Michael Greene
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Duane Grey as the cowboy in the saloon in Closer than a Brother.

He was known for JFK (1991) ― Charro! (1969) ― Female Jungle (1956).

Duane first appeared in the 1952 TV Series Rebound. It looks like he might have appeared in most of the TV Classic Westerns. With almost forty year of acting and over one-hundred credits to his name.

Earlier in his career, Duane was billed under several aliases.....his real name Duane Thorsen, and sometimes he was credited as Duane Thorson, and Rex Thorsen. He played badmen, sheriffs, ranchers and cowboys in numerous western features and TV shows, besides working in contemporary dramas.

He enjoyed pool and would go to the senior center to shoot pool with his friends.

Birth: October 4, 1921, Chicago, Illinois
Death: October 13, 2001, Eugene, Oregon

Jack Grinnage as Kirby Mitchell in The Legacy.
In the beginning of this episode he was the one who said "Hey.....there's Pop.....let's have some fun!"  He was the taller of the brothers who was funnin' with Pop when he had his attack.  

He appeared as Moose in Rebel Without a Cause and was a regular in Kolchak: The Night Stalker.  He has played many characters such as a Cowboy — Bellboy — Airport Manager — Delivery Boy — Inmate.
He turned down a part in Forbidden Planet to work on Rebel Without a Cause.

He was a regular on Kolchak: The Night Stalker as Ron Updyke (1974 - 1975).

I got in touch with Jack and asked him about the time he was on The Rifleman and if he remembered anything he would want to share with us.  This is what he had to say.....Let me see, directed by Bernie Kowalski I think.  I played a twin.  I was sitting on my horse, and Chuck Connors walked in front of the horse, the horse was spooked, raised up on its hind legs and then came down on Chuck Connors foot.  He rolled away, I don't remember if I controlled the horse or the wranglers came in.  Chuck went home for the day.   It was on a sound stage. I was not thrown. I don't think Chuck Connors was really hurt.  I think he just wanted to go home. Other than that it was a ordinary day. I think Peter Jasmine played my brother, and we where suppose to be pretty wild. James Bartlett was the town drunk and we razzed him.  Something like that.  Interesting, Would love to see the pictures.  Thanks for the email.  And hope my few memories helped.  Take care.  Jack G. 
Here is the Link to Jack's website
 

Raymond Guth as Charley Breen in Incident at Line Shack Six.

His acting career spans over forty years with close to one-hundred credits to his name.
He is known for his work on BioShock (2007), Silver Streak (1976) and Monte Walsh (1970).

He was in The Culpepper Cattle Company — The Blue Knight — Silver Streak —The Onion Field to name a few movies and the TV Series The Seekers. He was in numerous TV westerns, including Gunsmoke —" Rawhide — The Virginian — Probe — Highway to Heaven — Weird Science — Happy Days — The Dukes of Hazzard — Little House on the Prairie — Cade's County —  Alias Smith and Jones — Bonanza — The High Chaparral — Perry Mason — Gunslinger — Man Without a Gun.

Born: May 29, 1924 in Oil City, Pennsylvania

One Timer Only ― Index Page
This is a list of character actors who have appeared on The Rifleman — one time only