He was the referee who awarded Reading a goal against Watford even though the ball went a yard wide.
This season he's issued 37 yellow cards and one red card in 10 games. He was in charge of the Ipswich v Leicester game two weeks ago that saw the match played on a blanket of snow.
In a match between Wolves and Newcastle in August he booked 12 players.
His one previous Cardiff game was a 1 - 0 home win over Plymouth two years ago this week.
Mr Attwell will be assisted by S Beck and A Watts. The 4th official is R East.