|Born||29 April 1954|
|SMDM|| Dan in "Outrage in Balinderry"|
|BW|| Jim Burns in "The Pyramid"|
Son of veteran actor Dan O'Herlihy, Gavan O'Herlihy is best known for playing "Chuck Cunningham" in the first season of Happy Days and "Brad" in Superman III. He also appeared in the James Bond film Never Say Never Again.