User blog comment:Lasifer/Nostalgia Tournament/@comment-3528601-20120308235614/@comment-143604-20120309032825

I can confirm that. He made a brief "cameo" for a second in X-Men the Animated Series was running, as a shapeshifter who was transforming into various people from Wolverine's past, and changed into Deadpool for a frame or two. Blink and you miss it cameo. His animated debut was in the recentish Hulk vs. Wolverine animated movie.