Who can it be?

Both: Who can it be? Who can it be?

A: If it's someone on this train and I know it's not me
If I'm not a suspect and neither is she

Both: It's got to be someone else, who can it be?

U: What about that conductor who shouted "All aboard"?

A: He looked a bit suspicious or maybe just looked bored
Maybe it's that cowboy who wore that cowboy hat?

U: A fellow could hide lots of strange disguises under that
Who can it be? Who can it be?

A: Le Master of Disguise is full of trickery, but I will unmask him, just you wait and see
It's one of these passengers, who can it be?

U: What about that lady who wore an overcoat?

A: With something sparkly under it, I didn't fail to note

U: She wore a tan fedora and had a sneaky look

A: She's certainly a suspect in my little black book
Who can it be? Who can it be? If it's someone on this train

U: And I know it's not me! If I'm not a suspect and neither is he
Both: It's got to be someone else, who can it be?