Fortunately somebody has already made a implementation and you could try to use it as a base layer for your own system. I don't how easy it is to interface with Clojures core.async, but I guess its probably possible.

Here somebody has already did a mini-actor implementation: https://github.com/halgari/clojure-conj-2013-core.async-exam...

It might be a interesting exercise to implement Erlang Actors on top of this and then expose it to a JS interface. This might be a good idea in general and not just for your OTP-ish langauge.

Also I want to say that I came a across as very negative, I just wanted to say that LuvvieScript is quite cool and useful. WebWorkers are a much better primitive for Erlang style stuff because its shard nothing even on the server (I think). In really the browser should really provide a API for either shard memory threads or proper Erlang/Go Style threads.