Plus maybe they don’t want to be in a comic strip about a baby who poops all the time?
This is not the first “people from TV appear in a Marvin strip, and that’s the punchline” Marvin — there was a Cesar Millan strip recently, and I’m sure there have been others. Maybe … maybe someone needs to tell Marvin that the fun thing about a celebrity cameo is that it involves the actual celebrity? And that this doesn’t apply when it’s just a drawing of a celebrity? I could make they guys from American Pickers show up at my house too, if all I had to do is draw them.
You young folk may not remember, but many years ago there was a Very Special Crankshaft storyline where it turned out that Crankshaft was illiterate. All his friends and family banded together to help him learn how to read and write. Bet they regret that now!