Pedan, a six-foot-four, 210-pound Moscow native, has played six games with the American Hockey League's Bridgeport Sound Tigers this season, recording three assists and 51 penalty minutes.
He played for Russia at the 2011 at the world junior championship, earning two points and recording 25 penalty minutes in six games.
The 21-year-old was originally selected by the New York Islanders in the third round, 63rd overall, of the 2011 NHL draft.
Mallet, a 6-2, 200-pound Montreal native, has four goals, seven assists and 20 penalty minutes for the ECHL's Kalamazoo Wings this season.
The 22-year-old was selected by Vancouver in the second round, 57th overall, of the 2012 draft.