Marvin is a kind, intelligent, slightly-angered, but overall good person. He is one of the few SML characters who is made as the titular straight man, rather than made solely for laughs. Marvin's personality has grown overtime throughout the years. Marvin is a responsible man, owning a house while supporting Duggie, Shrek, Mama Luigi (before he moved away), Woody, Tony the Tiger, Mr. Pig, Lil' T, Jeffy, Rose, Braxton, Junior, Chef Pee Pee, and temporarily, the Angry Birds before kicking them out.
speaks slowly with gentle cadence, uses old-fashioned phrases, occasionally trails off into fond memories
