In DC Comics' "Swamp Thing", among the Parliament of Trees is a former Swamp Thing who is often cited as being a Man-Thing cameo. This character is identified as German pilot Albert Hollerer, who became the template for a Swamp Thing in the 1940s, but whose mind was damaged by his plane's crash. A miniature of his plane hanging near him when Swamp Thing visits him suggests readers of the Heap. He appeared in issues #47, 65, 89, 100, 105, 106, 109, 118, and 129.