No money at all from residuals? She must have had the worst agent in the world, by a considerable margin.
Residuals were not a “Thing” at that time. Actors, as well as musicians got royally (royalty) screwed.
It is my understanding that nobody had heard of reruns back when they launched this thing, so few people had any ideas about residuals.
Dawn Wells had residuals written into her contract, so she made plenty of money from the reruns. I think she was the only one that did that.
That's what I was thinking too. Plus $1,500/week in the 1960s was one hell of a lot more than most people made.
The first William Shatner memoir (of many) Star Trek Memories had a narrative of everyone assuming “You guys must be rolling in so much cash you can’t count it after Star Trek is still on TV in 50 states.” But they were broke and taking humiliating local summer stock play opportunities and hoping for bit parts on TV series as one shots. The money didn’t go to them at that phase.
Shatner was almost living in his car and feeding his Doberman meat ball subs. Much of his loss was to ex wife in a divorce that he admits “was all my fault.”
Later, he and the inner core made up a Most Favored Nation plan and got some money, followed by demands on future franchise earnings.