Ashton, 23, has registered three assists and 19 penalty minutes in 31 games with the Maple Leafs this season.
The six-foot-three 215-pound winger has also played 24 games with the Toronto Marlies this season, collecting 23 points (16-7) with 30 penalty minutes.
MacIntyre, 30, has appeared in one game for the Maple Leafs, stopping 14 shots in a relief effort March 23 at New Jersey.
The six-foot-one 190-pound goaltender has a record of 27-13-5 with the Marlies this season. MacIntyre has a 2.49 goals-against average, .918 save percentage and one shutout in 46 games played.