Career
Born as Reba Tassell, Welles is sister of fashion designer Gustave Tassell. Her first television appearance was in the episode "A Chill on the Wind" on Studio One in 1951, where she was credited under her birth name, but subsequently worked under the surname "Welles". Active from 1951 to 1964, Welles made appearances on about fifty television shows, including 77 Sunset Strip, Boots and Saddles, Bat Masterson, Alcoa Theatre, and four episodes of Alfred Hitchcock Presents.
She made five appearances on Perry Mason, including three roles as defendants: in 1959 she played Carol Delaney in "The Case of the Stuttering Bishop", and Carol Taylor in "The Case of the Frantic Flyer." She played Rita Norge in the 1957 episode, "The Case of the Runaway Corpse." In her other two appearances she played the role of murderer Edith Bristol in the 1961 episode, "The Case of the Waylaid Wolf," and murderer Leslie Eden in the 1964 episode, "The Case of the Illicit Illusion." In addition, Welles appeared in four feature films, including Good Morning, Mission Dove (1955) and Desire Under the Elms (1958).
She made her last onscreen appearance in a 1964 episode of Arrest and Trial.