Played by Jim Queally, Theo is a well-educated Protestant Pharmacist with an air of sophistication and fan of literature who regularly quotes poetry and who likes to assist in the artistic and literary aspects of the community, such as directing the nativity play at Christmas. He makes his debut in episode two of the series, entitled "The Date". As well as dispensing medicines for all the unusual ailments suffered by the local inhabitants, Theo was once the acting landlord at Jacksies while Jacksie was at a funeral and now lodges with him since the time his life was put under threat by his dead mother's dealings with a notorious money lender. Their living together leads to frequent bickering which leads both men to look like an old married couple, much to the amusement of Dan, Timmy and Jimmy. Incidentally his mother makes an appearance in the fourth episode, entitled "The Sign", when she is portrayed by Ronnie Masterson.