In no particular order the ones scared into my brain;
Stokovic hands down worst keeper we've had - jumped out of the way of shots! Kingston was as dodgy as they come, Kerr was a nightmare and O'Donnell was horrendous. Those 4 made Haugaard and Bogdan look like Buffon by comparison.
Boselli i think scored 1 FA cup goal on the way to winning it but that was the sum total for 6.8m. Worst bit of business we've ever done due to cost.
Koumas looked quality under Chris Hutchings but after he got injured and came back after Hutchings left we got about 3 good games in 4 years. No return for such a big investment. The lad had the ability but didn't show it.
Kapo - looked class previous year at Birmingham but shocking for us for 3m.
King was blatently crocked when we bought him for big money - no way he passed a medical he could barely walk! And that's before the legal issues.
Holt's legs had gone before we signed him - should've tried for him about 10 years earlier. Couldn't justify outlay for what we got.
Fitz Hall was such a liability he was worse than playing with 10 men he was a mistake machine. Palace fans had a party when we paid 3m for him and you could tell why.
Agahowa was meant to be in his mid twenties when we got him but I think he was really in his mid 30s and his legs had gone. Hard to believe what we got was the lad banging them in the Champions League a couple of years earlier.
Ronnie Stam - 3m or so we paid he was deceptively hopeless.
Donald Love - genuinely have no idea how he was a proffesional footballer.
Todorov - total garbage only contribution was missing a penalty.
Alan McGloughlin - was completely anonymous every game. Didn't look like he even tried.
Peron came at same time as McGloughlin from same club I think - another dud.
Andy Webster had a good debut but after that he was diabolical.
Haestad- decent international rep but played once and it was a nightmare.
Bogle - looked class in first 2 or 3 games but after that he was utterly useless. But at least got our money back on him. But virtually all of Joyce's signings Browne, Weir, Hanson in the bin with Bogle although Laurent and Gilks were decent in few appearances before they went.
Reece Wabara - utterly useless in League 1 which is saying something. Couldn't find another club despite being in mid twenties says it all. Also searched his own name on Twitter constantly.
Odelusi - we paid money for a player Bolton would've given away. Beggars belief.
Bidstrup - paid a few hundred grand for him back in the day which was a lot and terminated his contract in few months tells you that story.
Olembe - played once didn't look like he was even a footballer.
DeRidder - looked good advertising the kit but was useless on the pitch.
Sammon probably gets away with being so crap for his 1 good game and goal being so crucial but he was shocking in the rest of the time he was here. Folan had about 2 good games and scored a vital goal too but he was also terrible. At least they had a good moment each.
Ojo and Murphy on loan under Malky - might have gone on to better things but at the time utterly useless.
Leon Clarke the first time - couldn't be arsed.
Ged Brannan - was utterly useless.
Gillespie on loan the second time - couldn't have put any less effort in. Lasted about 4 games then sent back.
Kiernan had a bit of underservex hype but was liability.
Shaq Coulthirst - came on loan and only came on as sub a couple of times. Wasn't on pitch many minutes but enough to know he was shite.
Virtually all of Roslers 12m worth of signings - Cowie, McEcheran, Collison, Taylor, Delore, Huws etc - whoever was scouting that lot should be blackballed from the game. Even the few who did alight after they left were useless here.