Heck Dorland is a firefighter for the Arlen Fire Department, or AFD, first mentioned in the Season 1 episode How to Fire a Rifle Without Really Trying. He appeared in the episodes "A Fire Fighting We Will Go" and "Born Again on the Fourth of July." He is shown to live on Milton Street, a rival street directly behind Rainey Street.
In Season 3 Episode "A Fire Fighting We Will Go" Heck Dorland appears to be in his mid-to-late 50s with greyish hair and wrinkles on his face as opposed to his much younger appearance in Season 13 "Born Again on the Fourth of July." The Rainey St. neighbors also seem to have a much more cordial relationship with him in the earlier season whereas in Season 13 they appear to be more hostile towards each other and there is a rivalry between their two streets.
Heck is voiced by Stephen Stanton.