Updated: with official WWE video featuring Stardust responding to Amell.
Amell had ringside seats at tonight's RAW where Stardust came out and got in Amell's face.
Amell stood up and had a few words to say about it as well as tweeted a warning.
"You treadcarefully @StardustWWE -- Or I'll be back," Amell posted on his social networks.
Fans are hoping Amell will get a chance to guest host RAW.
You can catch Stephen Amell on Arrow when it returns this Fall and as Casey Jones for TMNT 2 on June 3, 2016.