El with ???? - help me identify them

The time has come for all my "Give Me The Good Old Days!" readers to step-up and try to help me and identify some of the people pictured with El (and sometimes his wife Flo) in some photographs. I have been unable to figure out who they are.  Some of these people may just be unknown or some may be famous and I just don't know who they are. I have a whole pile of these and I will be posting them from time to time, so don't hesitate in responding in the comments section if you know someone.

first off we have this one. We have El and his wife Flo on the right and it's certainly a picture from the later years in his life, so either late 1950's early 60's. Who are the other 3?? The only clues on the picture itself is written on the back: "compliments of Frank Mann, official photographer Hollywood Comedy Club".

***UPDATE*** Film historian Richard M. Roberts has identified the man on the left as possibly being actor Arthur Shields! Another film historian, Robert Birchard, has dismissed this, so it's still up in the air! 


I am now speculating the couple in the middle of the photo may have something to do with the management and ownership of the Hollywood Comedy Club, does anyone have any information on it??