Premier League - Bolton out of bottom three
Mohamed Diame had levelled for Wigan five minutes before the break, but a mistake from Steven Gohouri helped gift a goal to N'Gog.
Bolton were rock bottom of the table without a win since the opening day, but it was the Trotters who were the quicker out of the blocks. After Darren Pratley had seen a low cross cleared away, they took the lead through former Aston Villa midfielder Reo-Coker.
Pratley received the ball in midfield and found Eagles on the right. Reo-Coker chested in his well measured cross at the near post to give Bolton a priceless early lead.
Owen Coyle's side were well on top and almost doubled their advantage seconds later. Eagles cut in from the right and fired in a goal-bound shot with the outside of his boot that Ali Al-Habsi pushed away to safety.
Kevin Davies almost extended Bolton's lead on 21 minutes as he chested down a long ball from Martin Petrov, but his shot was easily saved by Al-Habsi.
N'Gog was making a positive impression alongside Davies, and his goal-bound shot was blocked by Antolin Alcaraz.
Jaaskelainen did well to tip away a corner that looked bound for his net, but he could not keep out Diame's effort on 39 minutes. The former Rayo Vallecano midfielder curled in a sumptuous right-footed shot from just outside the area to level it up at 1-1.
The Wigan fans were silenced, however, deep into first-half injury time as Gohouri gave the ball away to Davies on the left touchline. Davies found N'Gog in the area, and the striker, signed from Liverpool in the summer, comfortably dispatched the ball beyond Al-Habsi.
Wigan enjoyed the lion's share of first-half possession but went in a goal down at the interval.
The tireless N'Gog found Petrov who shot straight at Al Habsi with his weaker right foot.
It did not take long for Rodallega to get in on the action. The Colombian spurned an excellent chance to bring Wigan level after Victor Moses found his team-mate in acres of space on the right. His initial cross was blocked by Gary Cahill but he then played the ball to Rodallega in the centre of the box who shot straight at the goalkeeper.
Rodallega was looking a real menace and it was he who found Moses in the box but the youngster's shot was blocked.
Moses and Rodallega were giving the Bolton defenders all manner of problems. After 66 minutes the former skipped past three Trotters' players before being brought down by Dedryck Boyata. Rodallega fired the resulting free-kick well over the bar.
After 72 minutes Bolton were awarded a penalty when Gary Caldwell was penalised for a push in the box on Boyata.
Davies stepped up to take the spot kick but his effort was well saved by Al-Habsi.
After weathering much Wigan pressure, Bolton were now well on top and Eagles wasted another golden chance to put the game beyond Martinez's men as his tame shot was pushed behind by Al-Habsi from just outside the six-yard box.
The home side were still looking a threat, however. Another quick Wigan break saw Rodallega find Moses with a well weighted through-ball and the youngster fired over the bar from an acute angle.
Eagles put the game beyond Wigan two minutes into injury time, his goal rich reward for a super display on the right.