Callaghan, 25, began his career in the Sunderland before joining Darlington.

He soon made his way to Northern League side Washington before being snapped up by ambitious South Shields.

The left-back has recently returned from a long lay-off with a back injury, making his 50th and final South Shields appearance in May’s Durham Challenge Cup defeat against Shildon.

Callaghan told the club’s website: “I’m delighted to be here. I think it’s going to be a great season.

“I’m looking forward to developing and playing under Lee, he’s getting a good group of lads together and when I spoke to him, I was really excited to be a part of it.

“I think it’s going to be a great experience for myself and I know I’m going to develop as a player under him.

“I’m chomping at the bit to get started, I’ve looked after myself throughout the offseason and I’m training hard so I can’t wait to get started.”

Evans, 22, boasts previous clubs including Queen of the South and St Johnstone north of the border, but most recently played for Newcastle Benfield in the Ebac Northern League.

An energetic defender, Evans has been linked with a host of club’s higher up the pyramid, with Spartans securing his signature.

He told the club’s website: “You just can’t turn down an opportunity like this – I am absolutely delighted.

“It is a bit of a step up from the Northern League but it’s something I feel I can thrive in, I’m over the moon to be here.”

In addition, Blyth can also confirm that striker Dale Pearson and defender James Martin have signed National League forms.

Pearson is on Ebac Northern League First Division Newcastle Benfield`s books, and numbers Ashington, Dunston UTS, West Allotment Celtic, Crook Town and Morpeth Town amongst his other former clubs.

Martin is an ex-Queen of the South, Hartlepool United and Newcastle Benfield defender.