CBR

Science Dog appeared in the first issue of Robert Kirkman and Cory Walker's Invincible! 1 / 9

He was a fictional character in that universe and Invincible's favorite superhero. 2 / 9

Invincible met the writer of the comic and Kirkman got in some good self-deprecating jokes. 3 / 9

In Invincible #25, it looked like Science Dog might show up for real! 4 / 9

It turned out that aliens had taken his form to get Invincible to trust them. 5 / 9

Invincible #25, 50 and 75 had actually Science Dog back-ups by Kirkman and Walker. 6 / 9

In Invincible #97, the writer of Science Dog made some more self-referential comments. 7 / 9

Then a fan made fun of how many variants Science Dog #100 had. 8 / 9

This was Kirkman having fun with the many variant covers of Walking Dead #100. 9 / 9