Some smiles are contagious. Whether it be the smirking grin of Neil Patrick Harris, the bubbly cheer of Mindy Kaling, or the goofy antics of Jimmy Fallon, there’s always someone on TV shows who can make you smile. What about you?

Which TV star always makes you smile? Is it a late-night host? A sitcom star? A Muppet? We want to know.

Tell us your thoughts in the comments below.