As nouns the difference between bystander and beholder
is that bystander is a person who, although present at some event, does not take part in it; an observer or spectator while beholder is someone who observes or beholds; an observer or spectator.
bystander
English
Noun
(
en noun)
a person who, although present at some event, does not take part in it; an observer or spectator
See also
* rubberneck
beholder
English
Noun
(
en noun)
someone who observes or beholds; an observer or spectator
(fantasy) A fictional monster in roleplaying games, a floating orb of flesh with a large mouth and many eyes on stalks.