Two notable differences: Akka Actors concurrency is done at library level and an actor can block a JVM thread if not coded carefully. Erlang processes concurren

Two notable differences: Akka Actors concurrency is done at library level and an actor can block a JVM thread if not coded carefully. Erlang processes concurrency is support at VM level and there's no way an Erlang process can block a VM scheduler (native code aside, but with native code all bets are off)