Created by: Rob Liefield and Fabin Nicieza.
Published by: Marvel Comics
Created by: Paul Dini and Bruce Timm.
Published by: DC Comics.
Google.com, Deadpool movie (released by 20th Century Fox), Suicide Squad movie trailer (released by WB movies), Pinterest.
Wikipedia, Marvel Wikia, DC Wikia, Deadpool Comics (by Marvel Comics) and Batman Comics (by DC Comics).