For these reasons, different sexes, ages, classes, religions and races were all included in the original character line-up. Both Holland and Smith had been at the forefront of the move towards 'integrated casting' in television and had encountered an array of ethnic diversities in the process.
As a result of these factors, a diverse ensemble was assembled, comprising characters from various backgrounds, including different sexes, age groups, social classes, religions, and ethnicities. Holland and Smith had been instrumental in pioneering 'diverse casting' on television, having encountered a wide range of cultural identities during their work.