Now to be fair, there is not confirmation that Old Man Arrow will appear on Legends of Tomorrow, but due to some tweets put out by Caitty Lotz (White Canary), Brandon Routh (The Atom), and Stephen Amell (Green Arrow), it's pretty clear what's going to happen in the 6th episode of Legends....
To start off Stephen Amell posted this.....
Not too revealing, but just enough to get nerds like us speculating. Some thought it was the Van Dyke Beard (YES PLEASE !), but then Caitity Lotz and Brandon Routh posted these tweets...
Take Note of the Old Man and The Arrow emoji's beside each other, and the tweet about a guest star rules out Stein....
About The Author:
I was bitten by a radioactive kryptonite chewing-gum monster while being struck by lightning during a gamma-ray test. Then I found a cool Green Ring , A Shield, and a Hammer. Also, My Parents are Dead and I found my girlfriends dead body in a fridge. Good Times !