Sgt. Lookout
Full Name Sergeant Lookout
First Appearance (Barney and the Rocko Squad) A Time of Sharing (Clip #10)
Barney and the Rocko Squad Portrayer Mary Elizabeth McGlynn (classic clips)
"Now which one is the Safety Season???"
— Lookout to Bloopy, while imitating Nina Williams' voice at the end of a classic Bloopy's Buddies clip in Barney and the Rocko Squad.

Sergeant Lookout, better known as Sgt. Lookout or just Lookout, is a friend of Bloopy's, and is the local police officer of Bloopyville. She speaks with a slight London accent.

Like all of Bloopy's other friends, Lookout is a clip character, and therefore she will never make an appearance in the main footage.

Lookout's Barney and the Rocko Squad voice actress is also Nina Williams' voice actress - Mary Elizabeth McGlynn.