Show 
Actor (55 credits)
Actor (55 credits)
2000
18 Wheels of Justice
(TV Series)
Master Sgt. Jonas Taft
Master Sgt. Jonas Taft
- Ranger's Chance
(2000)
... Master Sgt. Jonas Taft
1994
The Memoirs of Sherlock Holmes
(TV Mini Series)
John Garrideb / James Winter
John Garrideb / James Winter
- The Mazarin Stone
(1994)
... John Garrideb / James Winter
1991-1992
Tarzán
(TV Series)
Cordell Winslow
Cordell Winslow
- Tarzan in the Sacred Cave
(1992)
... Cordell Winslow
- Tarzan and the Caves of Darkness
(1991)
... Cordell Winslow
1992
The Good Guys
(TV Series)
James MacQuarrie
James MacQuarrie
- The MacQuarrie Treasure
(1992)
... James MacQuarrie
1990-1991
Twin Peaks
(TV Series)
RCMP Officer Preston King
RCMP Officer Preston King
- Checkmate
(1991)
... RCMP Officer Preston King
- Dispute Between Brothers
(1990)
... RCMP Officer Preston King
1989
Lonesome Dove
(TV Mini Series)
Dan Suggs
Dan Suggs
- Return
(1989)
... Dan Suggs (as Gavin O'Herlihy)
- The Plains
(1989)
... Dan Suggs (as Gavin O'Herlihy)
- On the Trail
(1989)
... Dan Suggs (as Gavin O'Herlihy)
- Leaving
(1989)
... Dan Suggs (as Gavin O'Herlihy)
1987
A Killing on the Exchange
(TV Mini Series)
Dan Maitland
Dan Maitland
- Episode #1.6
(1987)
... Dan Maitland
- Episode #1.5
(1987)
... Dan Maitland
- Episode #1.4
(1987)
... Dan Maitland
- Episode #1.3
(1987)
... Dan Maitland
- Episode #1.2
(1987)
... Dan Maitland
- Episode #1.1
(1987)
... Dan Maitland
1983
Partners in Crime
(TV Mini Series)
Julius P. Hersheimmer
Julius P. Hersheimmer
- The Secret Adversary
(1983)
... Julius P. Hersheimmer
1982
We'll Meet Again
(TV Mini Series)
Capt. Red Berwash / Capt. Red Burwash / Capt. 'ed Burwash
Capt. Red Berwash / Capt. Red Burwash / Capt. 'ed Burwash
- The End of the Beginning
(1982)
... Capt. 'ed Burwash
- Exceptional Circumstances
(1982)
... Capt. Red Burwash
- One Day at a Time
(1982)
... Capt. Red Burwash
- Old Enough to Fight
(1982)
... Capt. Red Burwash
- You'll Never Know
(1982)
... Capt. Red Berwash
- A Wing and a Prayer
(1982)
... Capt. Red Berwash
- Up the Smoke
(1982)
... Capt. Red Berwash
- The Big One
(1982)
... Capt. Red Berwash
- The Milk Run
(1982)
... Capt. Red Berwash
- Hands Across the Sea
(1982)
... Capt. Red Berwash
- All Day & Every Day
(1982)
... Capt. Red Burwash
1980
A Rumor of War
(TV Mini Series)
Stanton
Stanton
- Episode #1.2
(1980)
... Stanton
- Episode #1.1
(1980)
... Stanton
1977
The Magical World of Disney
(TV Series)
Big Bob Landers
Big Bob Landers
- The Ghost of Cypress Swamp
(1977)
... Big Bob Landers
1976
Rich Man, Poor Man
(TV Mini Series)
Phil McGee
Phil McGee
- Part VIII: Chapters 11 and 12
(1976)
... Phil McGee
1974
Happy Days
(TV Series)
Chuck Cunningham
Chuck Cunningham
- Richie Moves Out
(1974)
... Chuck Cunningham
- Give the Band a Hand
(1974)
... Chuck Cunningham
- The Skin Game
(1974)
... Chuck Cunningham
- Fonzie Drops In
(1974)
... Chuck Cunningham (credit only)
- The Deadly Dares
(1974)
... Chuck Cunningham
- Hardware Jungle
(1974)
... Chuck Cunningham (credit only)
- Guess Who's Coming to Visit
(1974)
... Chuck Cunningham
- Richie's Cup Runneth Over
(1974)
... Chuck Cunningham
- The Lemon
(1974)
... Chuck Cunningham
- All the Way
(1974)
... Chuck Cunningham
1973
The Mary Tyler Moore Show
(TV Series)
Josh McBride
Josh McBride
- Son of 'But Seriously, Folks'
(1973)
... Josh McBride (as Gavin O'Herlihy)
Show
Soundtrack (1 credit)
Soundtrack (1 credit)
1982
We'll Meet Again
(TV Mini Series) (performer - 1 episode)
- A Wing and a Prayer
(1982)
... (performer: "You Are My Sunshine" - uncredited)
Show
Self (3 credits)
Self (3 credits)
Show
Archive footage (2 credits)
Archive footage (2 credits)
1992-1995
Tarzán
(TV Series)
Cordell Winslow
Cordell Winslow
- Tarzan and Cheetah's Desperate Adventure
(1995)
... Cordell Winslow
- Tarzan in the Eye of the Hurricane
(1992)
... Cordell Winslow
