Ryan Reynolds Teases Rob McElhenney Cameo in Deadpool 3

The 'It's Always Sunny' star's role remains under wraps, fueling fan speculation on social media.

Reynolds confirmed McElhenney's cameo during an episode of 'Welcome to Wrexham.'
The cameo was filmed on the set of Deadpool 3 in London.
Reynolds joked about Marvel's strict confidentiality, revealing few details.
Fans speculate McElhenney could play a TVA agent from the Loki series.
Deadpool 3, titled 'Deadpool & Wolverine,' hits theaters in July.