I was watching Dragnet and realized that Jack Webb had a stable of actors that played multiple roles. Those same actors may have seen roles in other Jack Webb shows. Tim Donnelly became a regular on Emergency after playing multiple roles on Dragnet.

Also The Dick Van Dyke Show and The Honeymooners each had an actor who played multiple bit parts.

Who else fit this description?

I was watching Dragnet and realized that Jack Webb had a stable of actors that played multiple roles. Those same actors may have seen roles in other Jack Webb shows. Tim Donnelly became a regular on Emergency after playing multiple roles on Dragnet.

Also The Dick Van Dyke Show and The Honeymooners each had an actor who played multiple bit parts.

Who else fit this description?

I have to do a tip of the hat to someone who seldom gets mentioned when this topic comes up:

Jonathan Hole

Great character actor appeared 7 times in Green Acres, 4 times in Petticoat Junction. Did Bewitched, Jeannie, Flying Nun, Martian, Batman. Multiple episodes on each series different characters.

Virginia Gregg

One of Jack Webb's favorites, 14 episodes playing different characters on the 67-70 Dragnet, and 10 episodes playing different characters on the original series.

Gary Lockwood

I was a Barnaby Jones fan, this guy showed up all the time. He played a total of 6 different characters in the 8 seasons the series was on.

I have to do a tip of the hat to someone who seldom gets mentioned when this topic comes up:

Jonathan Hole

Great character actor appeared 7 times in Green Acres, 4 times in Petticoat Junction. Did Bewitched, Jeannie, Flying Nun, Martian, Batman. Multiple episodes on each series different characters.

Virginia Gregg

One of Jack Webb's favorites, 14 episodes playing different characters on the 67-70 Dragnet, and 10 episodes playing different characters on the original series.

Gary Lockwood

I was a Barnaby Jones fan, this guy showed up all the time. He played a total of 6 different characters in the 8 seasons the series was on.

I didn't realize that Virginia Gregg was on the original Dragnet. She also played multiple roles on Hazel.

Burt Mustin popped up on many shows playing different roles. Amazing that he was in his late sixties when he started out acting on TV.

The multi character actors on the Honeymooners were George Petrie and Frank Marth.
On The Dick Van Dyke Show, Dick's personal assistant, Frank Adamo, was in 50 episodes playing multiple characters. He was also in 5 episodes in both The New Dick Van Dyke Show and The Mary Tyler Moore Show.