At regular times she emotes and calls in 2 adds before teleporting to a nearby catwalk. The whole group must immediately run to her new location, bringing the 2 adds along, as she will start casting a deadly AoE as soon as she has ported. Kill the 2 adds and turn your attention back to her until the next emote occurs. The teleportation destinations seem random so she might gate to the same spot she was at, making it easier.
He regularly emotes to bring in a skeletal crewmember, who can hit pretty hard. He also has a nastier trick called 'Bilge Wave': when he's about to cast that, he emotes various things, including "The deep, dark seas are singin yer name, matey!", "Ye be drownin in ye own tears!" or "To the Wretched abyss with ye!". It appears to be a frontal, AoE dot, taking the exciting form of a small phantom ship sailing towards the group. The tank should make sure he has aggro and the rest of the group they are behind Berlon. The dot is incurable and causes crushing dmg and a stifle.