The Roughriders received defensive lineman Linden Gaydosh, the first-overall pick in the 2013 CFL draft, international wide receiver Tommy Streeter and fourth and seventh round selections in 2017.
Capicciotti registered 24 defensive tackles, three tackles for loss and two quarterback sacks in 14 games with Saskatchewan in 2016. In 71 career CFL games with the Edmonton Eskimos (2012-13), Ottawa Redblacks (2014-15) and Roughriders, the 6-3, 235-pound Toronto native has recorded 132 defensive tackles, 12 special teams tackles and 27 quarterback sacks.
He was a 2015 CFL East Division all-star with the Redblacks.
Fulton started in 75 games over five seasons (2012-15) with Saskatchewan, helping them win a Grey Cup title in 2013.
The six-foot-four, 300-pound offensive tackle also spent time with the NFL's Washington Redskins, San Francisco 49ers and Indianapolis Colts in 2010 and the United Football League's Virginia Destroyers in 2011.
Gaydosh, a 6-4, 298-pound lineman from Peace River, Alta., signed with the NFL's Carolina Panthers in May, 2013 before joining Hamilton midway through the 2014 season.
His promising career has so far been derailed by injuries, including an Achilles injury that caused him to miss the 2015 season.
He made just one appearance for the Ticats this season.
Streeter joined the Tiger-Cats practice roster in August and has yet to play a CFL game.
The Ticats also signed international free agent wide receiver Kevin Elliott on Monday.
Elliott registered 23 receptions for 294 yards and two touchdowns in eight games with the Toronto Argonauts in 2016 before being released on Oct. 3.