I haven't stuck in one of my Garfield cartoons in a long time. This is "Day of Doom" from I-forget-what-season. Garfield is voiced by the late, great Lorenzo Music. Jon and the theater owner are Thom Huge. The newsman and the wishing well are Gregg Berger. And all the female voices are the magnificent Ms. June Foray.
That leaves only the narrator to tell you about. I cast a wonderful character actor named Charles Aidman in what turned out to be, I think, the only cartoon job he ever did in his long, illustrious career. Mr. Aidman, who passed away not long after we did this, was one of the most prolific actors to ever work in television and sometimes in movies. Here's a link to his Internet Movie Database listing which itemizes 168 TV and motion picture credits…and is, I'm sure, missing a few hundred more. You may also recognize his voice from hundreds of commercials and from narrating the 1985 Twilight Zone revival. (They picked him for his obvious dramatic qualities and also because he'd been in several episodes of the original show.)
Charles was a little puzzled why we wanted him for a cartoon. He showed up and said, "I only have this one voice and I don't think I could sound like a squirrel or a bunny rabbit." We told him to forget it was a cartoon and just read the copy like a dramatic show, which he did. A real pro.