Yes! Wrex is in Mass Effect 2
Assuming that your Shepard did not kill Wrex on Virmire, Wrex will appear on Tuchanka in Mass Effect 2. His cameo is the best in the game of all your ME1 squadmates.
Unfortunately, if you can’t import a save game, the default option is that Wrex was killed on Virmire. This is a serious bummer for those who can’t import for whatever reason or don’t want to replay ME1 to do so.
If you are one of those unlucky souls who don’t have a save game and you play on PC, there is always Mass Effect saves. Its a web site where people upload saves of various Shepards who have made different choices in Mass Effect.
