Former Barcelona goalkeeper Victor Valdes is training with Manchester United as he recovers from a serious knee injury.
Crystal Palace defenders Damien Delaney and Joel Ward have yet to agree new deals at the club.
Just one game into a second spell in the Selhurst Park hot-seat, Warnock was charged with the task of identifying additions that could make a difference to his squad.
He was able to wrap up three deals before the window closed, with Zeki Fryers, James McArthur and Kevin Doyle acquired from Tottenham Hotspur, Wigan Athletic and Wolverhampton Wanderers respectively.
Warnock is delighted to have landed players he considered to be top targets, and those that he has admired for many years.
He said in the Croydon Advertiser: “We worked hard all day and managed to get three lads in.
“We had worked on Zeki Fryers for quite a while, he’s up-and-coming from Tottenham and has a lot to prove.
“He’ll be a good addition, a left-footer, and we’ve struggled in that position, not just since I’ve been here but for a few weeks.
“James McArthur, I’ve been after him for a while, he’s a super player. I remember watching him up in Scotland and kept in touch with his progress.
“I think he’s got a lot to prove as well. He’s back with the Scotland squad and he’s looking forward to starting. He’s just our kind of player.
“Kevin Doyle from Wolves, the deal is to January. He’s been up and down, but he’s one I think will fit into the squad we have.
“We have a great dressing room and he’s the sort of lad I’ve always wanted to manage. I have kept in touch with watching him and Shane Long for a number of years.”
Yes 3 additions, 1 an up and comer, 2nd a good player and the 3rd not able to get into an average Wolves game yet. 3 to add to the squad not one of them a recognized top flight player. Maybe 2 will prove the club right but the 3rd I fear will just be taking up a spot on the bench.- brazman