Eustace is a character of Courage The Cowardly Dog.
Murial (wife) Ma Bagge (mother)
Eustace is a stubborn old man that is usually bossy to everyone around him except for his mother Ma Bagge. Eustace has an unquenchable thirst for monetary gain. In almost every episode, he is seen sitting in his favorite red chair while reading a copy of the Nowhere newspaper and possibly watching his television which he deems is precious to him. He has an adamant disliking for Courage Dog and frequently calls him a "stupid dog," taking great pleasure in scaring and messing with him whenever possible, which largely stems out of jealousy that Muriel constantly pampers and dotes on Courage; however, it is not uncommon for Eustace to scare or mess with Courage just for fun or to get Courage to leave him alone.
Lack of talent and good looks fuel Eustace's demeanor that has been a wreck since his childhood. Throughout his life, he lived under the shadow of his mean spirited brother Horst, was hated by his mother; and neglected by his father. He is in constant denial over his lack of abilities and, as such, believes he can fix anything. Eustace is excruciatingly greedy, and will seize any opportunity to be paid. Courage's arrival was an unwelcome addition to his life, as it distracts his wife Muriel Bagge from feeding him; a fact that he emphasizes frequently. Despite this, Eustace has shown a genuine love towards Muriel (though not unbending in the least) and has on occasions allied with Courage to protect her. He is immune to emotions but has a soft spot for children that remind him of himself. His constant tormenting of Courage seems to be a guise to cover up his own cowardice, which is also quick to be displayed in a scary situation; in fact, he often displays even more cowardice than Courage himself. His favorite musician is Velvet Vick, and his interests include watching television and fishing.
Eustace appears in the episode "Courage", He along with Muriel also survive the explosion. While at Villian HQ, Eustace offers to help the villians to kill the goodies if they kill Courage too.
He and Courage return again (without Muriel and Fred) in the final episode "The Final Battle" Eustace kidnaps Courage and drives around while forcing Courage to confess where the new Goodie HQ is, while Daffy Duck, Lyndsey Duck, Atomic Betty, Lisa Simpson, Bugs Bunny and Melody try to find him.