Making his big screen debut with Guardians Of The Galaxy, Fred the Dog probably has no idea just how happy he made a lot of fans with his cameo appearance as Cosmo in this movie. Sure he didn't speak, but his two appearances were a lot of fun. However, he surprisingly wasn't the only canine cameo on display here. James Gunn's own dog Von Spears also appeared when Peter Quill used a projection on Morag to find the Infinity Stone.