Bonneau returns for his third season with the Worcester Sharks. The 28-year-old from Baie-Comeau, Que., has played 80 games over two seasons with the Sharks recording six points (one goal, five assists) and 249 penalty minutes.
Bonneau has skated in 274 AHL games with Hamilton, Portland, Rochester and Worcester, accumulating six goals and 16 assists for 22 points along with 802 penalty minutes.
Rookie forward Brace enters his first full season with the Sharks after spending the last five seasons with Mississauga (OHL). The 21-year-old from Ottawa, Ont., is the all-time leader in games played (304) for Mississauga, and is tied for the franchise lead in points (89-145-234).
Last season, Brace led Mississauga in assists (52), points (73) and penalty minutes (89) before skating in eight games with the Worcester Sharks, where he recorded six points (three goals, three assists).
Rookie forward Scheidl enters his first full season with the Sharks after spending the last five seasons in the WHL with Vancouver, Red Deer and Regina. The 21-year-old from Saskatoon, Sask., led the Regina Pats last season in goals (41) and points (80) and ranked second in assists (39) while playing in all 72 games.
Scheidl suited up in 11 games for Worcester in 2012-13, notching one goal and one assist.
Rookie defenseman Bigos enters his first season with the Sharks after spending the last four seasons at Merrimack College, where he recorded 47 points (14 goals, 33 assists) in 133 games. The 24-year-old from Upland, Calif., was originally drafted by the Edmonton Oilers in 2009 with the 99th pick overall.
Bigos recorded 11 points (four goals, seven assists) and 111 penalty minutes last season with Merrimack and was acquired by the San Jose Sharks from the Oilers on July 6 in exchange for forward Lee Moffie.