Tibby Johnson is a fictional character portrayed by Scott Lawrence in the TV series Quantum Leap.
In the first episode they appeared in, titled Shock Theater - October 3, 1954 (season 3), they were 27 years old.
They appear in 1 episodes out of a total of 97 aired
Episodes1
Shock Theater - October 3, 1954
episode S3.E22 may 1991Sam leaps into a patient at a Mental Hospital and undergoes electroshock therapy. The treatment causes Sam to act like other people he's been. It also weakens his link to Al. Al must find a way to get his friend back to normal, and figure a way to carry out Sam's mission.