Angry Birds 2/Bosses

In Angry Birds 2, there are 3 different types of Boss pigs, which can be found at the 3rd level of every Daily Challenge, every level of King Pig Panic and certain parts in the Story Mode.

Chef Pig
Chef Pig is seen mostly at the 1st boss level in a level section and assists Chef Pig and King Pig with the eggs and flying ship.

Foreman Pig
Foreman Pig is seen mostly at the 2nd to last boss level in a level section and assists Chef Pig and King Pig with the eggs and flying ship.

King Pig
King Pig is seen usually at the last of levels for a boss stage and gets assisted by Chef Pig and Foreman Pig in his mission to steal the eggs from the birds.

Zeta
During the promotion of The Angry Birds Movie 2, Zeta was a Boss character in the King Pig Panic (replacing all 3 of the previously mentioned boss pigs)