yes
River Song is played by Alex Kingston.
The nile river is not alive
because they are still alive
So the Doctor and River can catch up to eachother on what they have done.
None are alive they are extinct
The Doctor and River Song have a romantic relationship. River married a robot of the Doctor that was controled by the Doctor while in an alternate reality, which brings about the question of whether the marriage ever actually happened, and if it counts because technically River married a robot.
River Song first appeared in 2008, when David Tennant was still playing the Doctor. The first time we saw River Song was when she died. River and the Doctor are moving in opposite directions in time, so as we, the viewers, move forward with the Doctor, we are seeing River Song's past.
Adam Templar has: Played Father in "Down by the River" in 2010. Played Doctor in "The Eighth Round" in 2011. Played Reid in "Backslasher" in 2012. Played The Doctor in "Hot Wings" in 2013. Played Wayne Caesar in "I Am Cursed" in 2014. Played Brigadier Charles Davis in "Informed Annihilation" in 2014.
River Son (but she didn't actually)
There has been no proof or solid statement as to who the person River Song killed is, only speculation. I think that, considering River Song described him as the best man she ever knew, and told the Doctor that the identitly of the murderee was "spoilers", it's possible that she killed him in future regeneration. Someday, we may know for sure.
Jacques Kerr has: Played Angler in "Taggart" in 1983. Played Doctor in "Taggart" in 1983. Played 1999 in "Dream Team" in 1997. Played Doctor in "Rebus" in 2000. Played David in "Tinsel Town" in 2000. Played BMW manager in "The Fabulous Bagel Boys" in 2001. Played Sonographer in "River City" in 2002. Played Waiter in "Driving Lessons" in 2006. Played Venture Capitalist in "Senseless" in 2008. Played Doctor in "Outpost: Black Sun" in 2012.
They use energy and they grow and develop.