Star Trek: Captain's Chair · Board game rules
Are Action Tokens unlimited in Star Trek: Captain's Chair?
Quick answer
Action tokens are not meant to be limited; use proxies if you run out. [p.2 — Components]
Details
The rulebook explicitly states that "ACTION TOKENS, DILITHIUM, LATINUM, AND GLORY ARE NOT MEANT TO BE LIMITED. IF YOU RUN OUT DURING PLAY, USE ANY PROXY AS NEEDED." [p.2 — Components]
Additionally, when you gain an action token during play, the rulebook notes: "Action tokens are not meant to be limited. In the unlikely case of you gaining a 7th action, use any suitable proxy." [p.31 — Gain/Spend an ⚡ (Action)]
This means you can theoretically accumulate as many action tokens as card effects allow during a single turn, and you should simply use substitute tokens (coins, dice, etc.) if the physical supply runs out.