In the physical sense, maybe, but cast, it turns out, is quite the multi tasker, meaning everything from throwing fishing hooks, to wormpoop. [1] So the sun casts {emits} light, while the human casts {masks out} a shadow.
From the examples, “outlines” seems to work best:
The bright summer sun outlines a human shaped shadow on a coffee table.
Thanks all. I shall move on to sentence two!
Pretty much the only thing it doesn’t mean is the thing I need a word for! ↩︎
The passing of time fore…shadowed a dilemma
Hmmm, but “outlines” just isn’t cinematic enough! URGH!
burns
draws
sizzles
floods everything but
spawns
persecutes
outlines cinematically 
. . . . . . . . . . . . .
A moving shadow or, say, a laser dot, appearing to travel faster than light, and therefore seeming to break physical laws by exceeding the speed of light, is actually just different photons arriving from the light source, all of which still travel at light speed. Since no material object or usable information is actually moving superluminally, this optical illusion doesn’t conflict with the principles of relativity.
I hope this is helpful to @pigfender. 