Dale Robertson — American Actor born on July 14, 1923, died on February 27, 2013

Dayle Lymoine Robertson was an American actor best known for his starring roles on television. He played the roving investigator Jim Hardie in the NBC/ABC television series Tales of Wells Fargo, and Ben Calhoun, the owner of an incomplete railroad line in ABC's The Iron Horse. He was often presented as a deceptively thoughtful but modest western hero. From 1968 to 1970, Robertson was the fourth and final host of the syndicated Death Valley Days anthology series... (wikipedia)

An actor can change himself to fit a part, whereas a personality has to change the part to fit himself. The personality has to say it his own way.
Don't ever take a dramatic lesson. They will try to put your voice in a dinner jacket, and people like their hominy and grits in everyday clothes.