He is best known for his television role as Det. Stan "Wojo" Wojeciehowicz from the sitcom Barney Miller (1975). Gail's best known feature film role is in D.C. Cab (1983) as Harold, the owner of the D.C. Cab taxi company. He recently had a lead role as Grandpa Jack in the film Tillamook Treasure.

In 1984, Gail was featured in the monodrama "The Babe", on Broadway. This stage play was filmed and later featured on PBS.

Gail has starred in other TV series, including Whiz Kids (1983) as "Llewellan Farley, Jr.", and in the short-lived Normal Life (1990). He currently appears on Sons & Daughters (2006).

Gail has made many guest appearances on TV shows, including Cannon, Dr. Quinn, Medicine Woman, The Streets of San Francisco, and The Drew Carey Show.

Gail runs Full Circle, a production company which has done documentaries on such subjects as Agent Orange, Native Americans, and nuclear issues.

	Act Your Age (2008) - Andrew
	Dexter (TV series) - Banana Boat Tour Guide (1 episode, 2007)
	It's Alive! (2007) - Banana Boat Tour Guide
	TV Land Confidential (TV series documentary) - Himself / Himself - interviewee (3 episodes, 2005-2007)
	Finales (2007) - Himself - interviewee
	Breakout and Disappearing Star (2005) - Himself
	Writing, Rehearsing & Recording (2005) - Himself
	Entourage (TV series) - Himself (1 episode, 2007)
	Malibooty (2007) - Himself
	Sons & Daughters (TV series) - Wendal Halbert (10 episodes, 2006-2007)
	Paige Returns (2007) - Wendal Halbert
	House Party (2006) - Wendal Halbert
	The Homecoming (2006) - Wendal Halbert
	Hospital Visit (2006) - Wendal Halbert
	Surprise Party (2006) - Wendal Halbert
	(5 more)
	Days of Our Lives (TV series) - Merle (2 episodes, 2007)
	Episode #1.10494 (2007) - Merle
	Episode #1.10493 (2007) - Merle
	The Tillamook Treasure (2006) - Grandpa Kimbell
	Entertainment Tonight (TV series) - Himself (1 episode, 2005)
	Episode dated 9 December 2005 (2005) - Himself
	I Love the 80's 3-D (2005 TV mini-series documentary) - Himself
	Perceptions (2005) - David Storm
	Bloodlines (2004) - Robert
	Graduation Night (2003) - Mr. Quigley
	The Drew Carey Show (TV series) - Les (1 episode, 2001)
	Hotel Drew (2001) - Les
	Facing the Enemy (2001) - Thomas Galloway
	The Perfect Wife (2001 TV movie) - Ted Vance
	Chicken Soup for the Soul (TV series) - Mr. York (1 episode, 2000)
	A Pearl of Great Value (2000) - Mr. York
	18 Wheels of Justice (TV series) - Frank Gorman (1 episode, 2000)
	A Prize Possession (2000) - Frank Gorman
	Judging Amy (TV series) - Psychiatrist (1 episode, 2000)
	Shaken, Not Stirred (2000) - Psychiatrist
	Mind Lies (2000) - Lou
	Judgment Day (1999 video) - General William 'Bill' Meech
	Chicago Hope (TV series) - Caleb Cline (1 episode, 1998)
	Viagra-Vated Assault (1998) - Caleb Cline
	Naturally Native (1998) - Mr. Carlson
	Nothing Sacred (TV series) - Actor (1 episode, 1998)
	Sleeping Dogs (1998) - Actor
	Beyond Belief: Fact or Fiction (TV series) - Grandpa (1 episode, 1997)
	The Tractor (1997) - Grandpa
	Gun (TV series) - Dick Sproule (1 episode, 1997)
	The Hole (1997) - Dick Sproule
	The Inheritance (1997 TV movie) - Arliss Johnson
	Tell Me No Secrets (1997 TV movie) - Art Koster
	Good Luck (1996) - Farmer John
	Forest Warrior (1996) - Sherrif Ramsey
	The Lazarus Man (TV series) - Actor (1 episode, 1996)
	The Sheriff (1996) - Actor
	Dr. Quinn, Medicine Woman (TV series) - Mr. Edwin James (1 episode, 1996)
	Deal with the Devil (1996) - Mr. Edwin James
	Frame by Frame (1996) - Actor
	Walker, Texas Ranger (TV series) - Dan Lundy (2 episodes, 1995)
	Whitewater: Part 2 (1995) - Dan Lundy
	Whitewater: Part 1 (1995) - Dan Lundy
	Renegade (TV series) - Charles B. Douglas / D.B. Cooper (1 episode, 1995)
	The Ballad of D.B. Cooper (1995) - Charles B. Douglas/D.B. Cooper
	Home Improvement (TV series) - Officer Carl Keegan (1 episode, 1995)
	No, No, Godot (1995) - Officer Carl Keegan
	Mortal Fear (1994 TV movie) - Det. Michael Curran
	Deadly Target (1994/I) - Captain Peters
	Pontiac Moon (1994) - Jerome Bellamy
	Sodbusters (1994 TV movie) - Tom Partridge
	Ride with the Wind (1994 TV movie) - Jack Hayes
	Dangerous Touch (1994) - Jasper Stone
	The Switch (1993 TV movie) - Judge Johnson
	Quantum Leap (TV series) - George Sanders (1 episode, 1993)
	Liberation - October 16, 1968 (1993) - George Sanders
	A Child Lost Forever: The Jerry Sherwood Story (1992 TV movie) - Mr. Jurgens
	Doogie Howser, M.D. (TV series) - Landlord (1 episode, 1992)
	Doogie Doesn't Live Here Anymore (1992) - Landlord
	Somebody's Daughter (1992 TV movie) - Harry
	Street Crimes (1992) - Flannigan
	Amazing Stories: Book Four (1992 video) - Duncan Moore (segment "Blue Man Down")
	Our Shining Moment (1991 TV movie) - John McGuire Jr.
	Normal Life (1990 TV series) - Max Harlow (unknown episodes)
	Murder, She Wrote (TV series) - Stanley Holmes (1 episode, 1989)
	Dead Letter (1989) - Stanley Holmes
	The Outside Woman (1989 TV movie) - Billy
	Judgment in Berlin (1988) - Judah Best
	Matlock (TV series) - Lt. Chet Webber (2 episodes, 1988)
	The Investigation: Part 2 (1988) - Lt. Chet Webber
	The Investigation: Part 1 (1988) - Lt. Chet Webber
	Man Against the Mob (1988 TV movie) - Rusty Kitchens
	Spies (TV series) - Harry (1 episode, 1987)
	Baby (1987) - Harry
	Tonight's the Night (1987 TV movie) - Sam Davies
	Amazing Stories (TV series) - Duncan Moore (1 episode, 1987)
	Blue Man Down (1987) - Duncan Moore
	Hoxsey: How Healing Becomes a Crime (1987 documentary) - Narrator
	Where Are the Children? (1986) - Clay Eldridge
	Can You Feel Me Dancing? (1986 TV movie) - Mel Nichols
	Killer in the Mirror (1986 TV movie) - Jim Armbruster
	Intimate Strangers (1986 TV movie) - Sol Kramer
	Trapper John, M.D. (TV series) - Barney Tucker (1 episode, 1985)
	Billboard Barney (1985) - Barney Tucker
	The Other Lover (1985 TV movie) - Sal
	Tales of the Unexpected (TV series) - Charlie (1 episode, 1985)
	In the Cards (1985) - Charlie
	Comedy Factory (TV series) - Harry Stover (1 episode, 1985)
	Harry and the Kids (1985) - Harry Stover
	Letting Go (1985 TV movie) - Dr. Rudnick
	The Grand Baby (1985 TV movie) - Actor
	Heartbreakers (1984) - King
	Whiz Kids (TV series) - Llewellen Farley, Jr. (3 episodes, 1983-1984), Director (unknown episodes)
	Altaira (1984) - Llewellen Farley, Jr.
	Father's Day (1984) - Llewellen Farley, Jr.
	Fatal Error (1983) - Llewellen Farley, Jr.
	D.C. Cab (1983) - Harold
	Vietnam: The Secret Agent (1983 documentary) - Narrator
	Barney Miller (TV series) - Det. Stan 'Wojo' Wojciehowicz / Det. Stan Wojciehowicz (170 episodes, 1975-1982), Director (4 episodes, 1978-1982)
	Landmark: Part 3 (1982) - Det. Stan 'Wojo' Wojciehowicz
	Landmark: Part 2 (1982) - Det. Stan 'Wojo' Wojciehowicz
	Landmark: Part 1 (1982) - Det. Stan 'Wojo' Wojciehowicz
	Bones (1982) - Det. Stan 'Wojo' Wojciehowicz, Director
	Altercation (1982) - Det. Stan 'Wojo' Wojciehowicz
	(165 more)
	Battle of the Network Stars IX (1980 TV special) - Himself (ABC Team)
	Fun and Games (1980 TV movie) - Actor
	The Aliens Are Coming (1980 TV movie) - Russ Garner
	The Lakeside Killer (1979 TV movie) - Andrew Spencer
	Battle of the Network Stars VII (1979 TV special) - Himself (ABC Team)
	Pearl (1978 TV mini-series) - 1st Sgt. Walder
	Desperate Women (1978 TV movie) - Lieutenant Spangler
	Like Mom, Like Me (1978 TV movie) - Henry Millen
	Curse of the Black Widow (1977 TV movie) - Ragsdale
	The Alan Hamel Show (TV series) - Himself (1 episode, 1977)
	Episode dated 24 February 1977 (1977) - Himself
	Dinah! (TV series) - Himself (1 episode, 1976)
	Episode dated 18 November 1976 (1976) - Himself
	The Streets of San Francisco (TV series) - Donald S. 'Don' Wilton (1 episode, 1976)
	Dead or Alive (1976) - Donald S. 'Don' Wilton
	Foster and Laurie (1975 TV movie) - Doctor #1
	Get Christie Love! (TV series) - Actor (1 episode, 1974)
	Fatal Damage (1974) - Actor
	Mr. and Mrs. Cop (1974 TV movie) - Albanel
	Shaft (TV series) - Tony (1 episode, 1974)
	Cop Killer (1974) - Tony
	Dirty Harry (1971) - Tunnel Hoodlum (uncredited)
	The Organization (1971) - Rudy
	Cannon (TV series) - Marion Blake (1 episode, 1971)
	Fool's Gold (1971) - Marion Blake
	The Priest Killer (1971 TV movie) - Patrolman