Mortimer Goth is one of the supporting characters of The Sims series. He is the husband of Bella Goth and the father of Cassandra and Alexander Goth. He wasn't seen much in Andrew's Let's Plays unlike his wife. It is clear that Andrew dislikes the Goths, calling them "smug".
Mortimer Goth is famous for having short black hair, a mustasche and a fancy suit. For some reason Andrew switched Mortimer's clothes to a greasy tank-top.