Who is this green guy?

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I just recently acquired a green/blue prisoner. I have never seen one before, so I don't know what to do.
Is he one of those 'convicted guards/staff members' or something? Do I need to put him in a special cell?
Any help or advice will be appreciated.
EDIT: Here's another one:
Pictures about "Who is this green guy?"



Who is green guy?
Green Guy (not to be confused with Duck) is the revised version of Yellow Guy that was created after Red Guy pulled a plug on a machine that was monitoring the television show. It is unknown what happened to the original Red Guy, Yellow Guy, and Roy.Who is the eternal Green Man?
The Green Man is a legendary being primarily interpreted as a symbol of rebirth, representing the cycle of new growth that occurs every spring. The Green Man is most commonly depicted in a sculpture, or other representation of a face which is made of, or completely surrounded by, leaves.How old is the Green Man?
The pub name \u201cThe Green Man,\u201d then, seems to have originated in the 17th century and to have referred in its earliest forms to the leaf-covered Green Man common in 16th century pageantry. As we've seen, Lady Raglan was drawing on this tradition when she named the foliate head \u201cGreen Man.\u201dWho was the Green Man and what did he represent?
The Green Man is believed to symbolise the cycle of life, death and re-birth. The symbol of Godhood within the male and its relationship with the transcendent life force our Goddess, the female expression of divinity. He is a Pagan symbol who heralds Spring after a long winter and the renewal of lush vegetation.The green man dance
Sources: Stack Exchange - This article follows the attribution requirements of Stack Exchange and is licensed under CC BY-SA 3.0.
Images: Ketut Subiyanto, Jonathan Borba, Ketut Subiyanto, Zen Chung