Actor who portrays two Get Smart characters, the best known being the Chief's assistant Hodgkins in three season one episodes:
- Episode #4: "Our Man in Toyland"
- Episode #7: "KAOS in CONTROL"
- Episode #9: "Satan Place"
O'Byrne is also credited as Hodgkins in Episode #11: "Too Many Chiefs" but does not appear (presumably a deleted scene).
- He returns in season five as Hester Van Hooten's husband Jason in Episode #129: "Rebecca of Funny-Folk Farm"
See IMDb entry.