Lacroix

Vice-Admiral Lacroix (ラクロワ中将,) was a name that was shouted out during the rampage of Oars Jr. during the Battle of Marineford in Chapter 555. Lacroix's name comes from la croix, which means the cross in French.

Lacroix's identity is still unclear, but he is either:
 * a mustachioed human swordsman who has made many small appearances throughout One Piece whose name was shouted out after he gave orders to marine troops during the Battle of Marineford
 * a member of the Giant Squad whose name was shouted out because he was slashed by Oars Jr. He may be a swordsman.

If Lacroix is Mustachoied
If Lacroix is the mustachoied human, then he looks very similar to Vice-Admiral Momonga: he is mustached, of average height and well built. Like Momonga and Kizaru, he wears a pinstripe suit, though his stripes are much thinner than theirs. However, in the anime he wears a purple suit. The main difference between Lacroix and Momonga's appearances is that Lacroix's mustache is French-looking, and he has a short, flat hairstyle instead of Momonga's samurai-style hair and stache.

If Lacroix is a Giant
If Lacroix is a giant, he is known to have a black suit and black gloves, a marine cap, and a Justice jacket. He may have appeared in Chapter 550 and later in Chapter 554 among members of the Giant Squad as a swordsman with a wide chin and a big flat nose, but that giant was drawn without gloves. However, he is so similar in looks otherwise to the giant who was slashed by Oars Jr. that this may be a drawing mistake.

If Lacroix is Mustachoied
The mustachioed Vice-Admiral first appeared among the Marine Brass when Lieutenant-Commander Brandnew announced Luffy's first bounty of 30,000,000 Beli.

He later appeared later at the meeting to decide Crocodile's replacement for the Shichibukai. At this meeting, he was first strangled by a fellow marine under the control of Donquixote Doflamingo until Vice-Admiral Tsuru told Doflamingo to stop. Doflamingo later tried to make the mustachioed Vice-Admiral and the other marine fight to the death, but Sengoku's arrival stopped Doflamingo's tomfoolery.

The mustachiod Vice-Admiral was among the Vice-Admiral commanders at the Battle of Marineford and was seen slicing up cannonballs with fellow Vice-Admirals Momonga and Doberman. When Oars Jr. broke through the marine's defenses, he ordered the marines to fall back and strengthen the bay defenses so Whitebeard's forces could not enter the plaza.

If Lacroix is a Giant
A giant with a wide chin and a big flat nose was shown guarding Ace in Chapter 550. This giant was later seen drawing his sword among the Giant Squad in Chapter 554. It is unknown if this is the same giant who was sliced up by Oars Jr. in Chapter 555.