Question. Context: Clara Edwards (originally Bertha Edwards, Bertha Johnson and then Clara Johnson) is a fictional character on the American television sitcom The Andy Griffith Show (1960 -- 1968). Clara was portrayed by actress Hope Summers.

Question: who plays clara johnson on the andy griffith show?
Answer. Hope Summers
What step-by-step reasoning justifies that answer?
Reasoning: The relevant information to answer the above question is: Clara was portrayed by actress Hope Summers.