Known by every Lakeside resident under a different name, Mr. Meatloaf is the orphanage’s cat. 
He just showed up one day and never left, being naturally adopted by the orphans. 
There’s often speculation about whether he was dropped off there by someone, or if he willingly came and left another family behind.
Despite this, the orphans count him as one of their own, and Mr. Meatloaf himself is particularly fond of Kitt.