Abbot Thomas is a character from "The Busy World of Richard Scarry" episode "A Royal Game of Dennis".
He is a goat and he is a monk from the 16th Century. As abbot he is in character of the monastery where Brother Dennis and Brother Pierre discover Tennis. He is rather strict and likes his abbey to run smoothy. He often catches Brothers Dennis and Pierre playing when they should be working.
In "The Busy World of Richard Scarry" Abbot Thomas is voiced by William Colgate.