Giant

Giants or Giant Zombies are unused mob that have Basic attack ai

Xbox and 360 versions
the giants have ai same as before 1.8, but require mods and inventory editors to place egg in dispenser to spawn, the giant is slighty larger than java edition

Java Edtion or PC
The giants added in indev, but disabled in infdev, in alpha only using Game modifyers or mods to spawn, as 1.0, changed sounds same as player, as 1.7.2, can spawned by /summon Giant ~ ~ ~ as 1.7.2.

or

/summon giant ~ ~ ~ as 1.11.

as 1.8, Giants AI is removed and can only restored by mods.

as 18w50a the giants have Zombie Sounds and AI and removed in 19w03a

Giants in indev only spawned by modding using mappings, only spawn in game developer