Well, they have more than 2 people dubbing films here in Spain. However, it's true that some of them dub 4 o 5 different american actors.
The problem is that acting just with your voice in front of a microphone is much more complicated than acting in a real film or theathre. It takes them years to become a good dubbing actor.
By the way, Spanish dubbing actors are considered to be among the best in the world. I heard that recently the Fox awarded the Spanish version of The Simpsons as the best dubbing.
Anyway, you won't get the same as you you were watching the original version (vo.) but it's very convenient for us.
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