Milner, 19, made his cup debut in the fourth round win over Rochdale, with that victory setting up a mouth-watering local derby against the Wildcats, who won the recent meeting between the two sides 28-24.
The Wakefield-born man told the official Tigers website: “We’ll try to go into the game as we would any other.
“But there’s obviously going to be a little more tension between the teams given the importance of the game.
“Wakefield beat us a few weeks ago in a really close game in the league so we’ll be looking to rectify that result and get one over them and keep progressing in the cup now because that’s a big aim for us all.
“Getting through to the latter stages of the cup would be massive for the club and for me personally. The Cup is a fantastic competition and we’ve got a lot of players who’ve had plenty of experience in the competition. When people like Richie Mathers talk about playing and winning in the final, it’s an experience they speak very highly of and it’s one I’d like to experience myself.
“It doesn’t get much better than these type of games.”
Castleford take on Wakefield at the Rapid Solicitors Stadium on Saturday (2.30pm), in a game televised live by the BBC.