Although based on the original BBC version of the series and similar in plot and story arcs, the characters have been Americanized to reflect the story of the house: in the British version, Isaac is a Second World War captain (also a closeted gay man, who remains unnamed; the Captain in the British series is far more serious and a bit more tragic, much of the comedy coming from his strict military ways and his obsession for rank, while Isaac is more flamboyant and sarcastic); Trevor (the trouserless ghost) is a disgraced MP instead of a Wall Street broker (confirmed in the BBC series to have died while having sex, while Trevor's death is not clear); and Thor the Viking is a caveman. Two original characters, Flower the Hippie and Alberta the jazz singer, substitute a naive Georgian woman (who as Flower is always absent-minded, though Flower's is more an effect of drugs) and a failed romantic poet who, like Alberta, constantly exaggerates his own importance and significance, though Alberta's talent is genuine but the British character's is not). Some of the characters' traits were given to others: Trevor's crush on Sam was originally from the romantic poet, while Sassapis' wit and sarcasm were originally the Caveman's. Hetty, the lady of the house, and Pete, the friendly scout leader, remain relatively the same. Crash, the decapitated ghost (a Tudor nobleman in the BBC version), shares the original's recurring joke of constantly losing his head.