Donald & Douglas

Donald 9, and Douglas 10, are Scottish twin engines.

Both are 0-6-0 tender engines (The original character's wheel configurations are 0-6-0's).

The black TVS liveries of them spawn in the sheds next to Knapford in the Bedroom with BoCo, Diesel, and Stepney.

The blue Railway Series liveries of them spawn in the Living Room in front of the TV with Ivor and Neil.