When a card effect references "friendly players," does this include the player who played the card? The instance in particula that im referring to is the BotF Obi-Wan, who let's "each friendly player" put a card from his discard pile into his hand?

Yes, you are considered friendly to yourself. Just be careful as some cards specify "each other friendly player", which does not include you.

Note that this not only makes Obi-wan pretty useful in 1v1, but also the new fate card. :-)

Thanks! Tha really makes those cards incredible!