Merv (as he is better known throughout the series) is Dream's jaded, street-wise, cigarette-smoking janitor. While his appearance can vary based on who is viewing him (for example, William Shakespeare saw a turnip-headed version of Merv in Sandman #75 (March 1996)), Merv is generally portrayed as having a pumpkin for a head. His appearance is based on Jack Pumpkinhead, a character in L. Frank Baum's Oz books.
Mervyn's first appearance in The Sandman #5 (May 1989) had
him driving a bus, helping to transport Morpheus on his quest.
Pumpkinhead later claims this was his job during Morpheus' absence.
Merv seems to be in charge of the construction and demolition of the Dreaming, though he often complains that his job is superfluous since Dream can change any of it at will.[1] He takes up arms to fight the Furies in The Kindly Ones and is killed, but he was returned to life by the new Dream in The Wake.
Mervyn also appeared in his own spin-off to The Sandman series called Merv Pumpkinhead: Agent of DREAM, published in 2000. In this publication, Merv goes on a James Bond-esque
adventure in which he attempts to foil the schemes of a would-be world
conqueror, and along the way meets beautiful women and evil villains.
Merv co-stars a later issue of 'The Dreaming', where a dreamer finds joy working with Merv's repair crew. [2]