The Chaser is the Quidditch player who passes the Quaffle, trying to throw it through the goal hoops; there are three on a Quidditch team. Each goal scored by a Chaser is worth ten points (PS10).
The ancient title of the Chaser was “Catcher” (QA3).
After a foul is committed, a Chaser takes the penalty shot one-on-one against the Keeper (QA6).
The practice of “Stooging“, where more than one Chaser enters the scoring area, was outlawed in 1884 (QA6).
Two other fouls that can be committed by Chasers are Haversacking and Quafflepocking (QA6).
Modern Chaser moves
Hawkshead Attacking Formation
Reverse Pass (QA10).
Some famous Chasers
Darren O’Hare, who is credited with the Hawkshead Attacking Formation (QA7)
Joscelind Wadcock, Puddlemere United Chaser who has a Famous Wizard card (FW)
Petrova Porskoff, who is known for the Porskoff Ploy (QA10)
Alasdair Maddock, who loves Muggle sports (DP1, DP2, DP3)
Ginny Weasley, who is on the Gryffindor Quidditch Team, joins Holyhead Harpies after Hogwarts and later becomes the Sports Correspondent for the Daily Prophet (HBP11, BLC, Pm, CC)
Wilda Griffiths, who crossed Gwenog Jones and subsequently disappeared during a Quidditch match (DP4)
Dragomir Gorgovitch of the Chudley Cannons, who holds the record holder for the most Quaffle drops in a season (DH7).