Are their other terms anyone uses for those who watch our entertainment besides Spectator or Audience? There must be more terms used other than, "Spec".
Target, Mark or Victim are not appealing.

In my effect descriptions I use VA - Volunteer Assistant, since they are no longer just onlookers.

I also use Witness or Referee if the VA is performing that function rather than holding objects

We like "audience helpers".

Julie & Co.

Thank You two for the input.

I've noticed that magicians haven't come up with a 'shop talk' word for assistance and helpers. There is "talking" for when coins or props make a sound and there are numerous names for sleights and subtleties.

"Minions"

I often refer to them as participants, as this is what I want them to do on many levels: participate. Spectator sounds like a silent observer. However, I use these terms interchangeably amongst fellow magicians.

Thank You, Chollet.

So far then, at this point there doesn't seem to be a slang or shop talk type of term to refer to spectators that at least isn't demeaning.

Upon a search, the synonyms for "spectator" showed-
bystander
fan
moviegoer
observer
onlooker
sports fan
theatergoer
viewer
beholder
clapper
eyewitness
kibitzer
looker
looker-on
perceiver
playgoer
seer
standee
watcher
witness
gaper
gazer
showgoer
stander-by

For "audience"-
congregation
crowd
gallery
gathering
market
public
admirers
assemblage
assembly
devotees
fans
following
hearers
house
listeners
moviegoers
onlookers
patrons
playgoers
spectators
theatergoers
turnout
viewers
witnesses
showgoers

Participants sounds good.

Yes, Participant sounds good but how about a magician's term or non-laymen's term for participants or audience? Example; I have seen the word "turtle" used to refer to a coin shell.

Participant is the phrase I like.