Of course he (Jason) is incredibly handsome! But I think his appeal is because he seems so down to earth, genuine and loves to laugh! He is just so enjoyable!! Love him, lucky Lisa!
The third guy is Ty Olsson - a Canadian actor. He was on SG1 twice - different characters each time. I know him as Captain Kelly from Battlestar Galactica.
wow I didn't know he was in Stargate SG1 too! I loved that show but I haven't noticed him in it xD I know him as Benny (a vampire friend of Dean) from Supernatural :)