2 former players, David Van Zanten and Marc McAusland also rejoined St Mirren.
The most notable departures from the club were that of first team regulars, Andy Dorman, Billy Mehmet and vice-captain Jack Ross after their contracts expired.
Influential Welsh international midfielder Andy Dorman has moved to English Championship side Crystal Palace, managed by the former Scotland boss George Burley.
Dorman had spent two and a half years in Paisley, during which time he won his first international cap against Croatia[1] and was joint top goalscorer in his first full season at the club.
[2] Jack Ross left the club having spent the latter part of the season out with an ankle injury[3] and joined SPL rivals Hamilton Academical.