Ocean's name is like the sea

Orchid can be prickly

Otis has a bunch of secret specialized abilities

Baby Orson drives a van

Owen's not above a scam

Olaf the potato-loving werewolf howls 'cause he can

Oh-oh, it's another O-O-O!

Oh-oh, it's another O-O-O!

Obfusco starts and ends with O

Oona has two in a row

In the case of Dr. O, the O is all you need to know!

Other single-letter names:

Coach O knows a lot of games

Don't forget Ms. O—or you'll be in her office to explain

Uh-oh, it's another O-O-O

Can't believe there's another O-O-O!

O'Brian's not the only one

Trained in how the tubes are run

There's also O'Malley and O'Duffy and O'Jamison!

Also O'Donnell and O'Fynne

O'Grady and O'Callaghan

O'Toole, O'Shea, O'Newl, O'Guire—

I can't fit the others in!

Uh-oh, it's another O-O-O! (Whoo!)

Uh-oh, it's another O-O-O

I'm so happy that you came

To my agent memory game!

I would add myself, except...

I totally forgot my name.