From the start of the premier league Liverpool have had 42 players score a hat trick the latest was Suarez
There are a few, but Jermaine Pennant is the only player to score a hat trick on his debut.
Jimmy Greaves scored for Chelsea, AC Milan, Tottenham and West Ham on his debut - he also scored for England Schoolboys, Under 23s and the full England team on his first appearance for them.
He has scored 36
Fernando Torres scored 65 goals in his career at Liverpool.
He scored 129 goals over 2 periods at Liverpool FC.
To my surprise,Messi hasn't scored a goal against liverpool. (as of 2013)
Craig Bellamy is the only one. he scored for Coventry, Newcastle, Blackburn, Liverpool, West Ham and Man City
Maxi has scored 4 goals