As most of you probally know, Oz is directed by Barry Levinson and Tom Fontana- the same masterminds behind Homicide: Life On The Street. Many of the actors who have appeared on Homicide: Life On The Street have done double duty by appearing on Oz as well. Below is a list of all the Oz characters who have appeared on Homicide: Life On The Street.
| Actor | Oz Character | H:LotS Character | H:LotS Episode(s) |
| Lee Tergesen | Tobias Beecher | Officer Chris Thormann | "A Ghost Of A Chance"
(Episode 1.2) "Son Of A Gun" (Episode 1.3) "A Shot In The Dark" (Episode 1.4) "Dog And Pony Show" (Episode 1.6) "The Night Of The Dead Living" (Episode 1.9) "Crosetti" (Episode 3.6) "Double Blind" (Episode 5.18) |
| Eamonnn Walker | Kareem Said | Eric Thomas James | Homicide:The Movie (2000) |
| Jon Seda | Dino Ortalani | Detective Paul Falsone | 1997- |
| Dean Winters | Ryan O'Reily | Tom Marans |
"Nothing Personal" (Episode 3.18) "Hate Crimes" (Episode 4.5) "Prison Riot" (Episode 5.3) |
| Sean Whitesell | Donald Groves | Dr. Eli Devilbliss |
"Son Of A Gun" (Episode 1.3) "A Shot In The Dark" (Episode 1.4) "Smoke Gets In Your Eyes" (Episode 1.8) "Partners" (Episode 3.11) "A Doll's Eyes" (Episode 4.4) "Work Related" (Episode 4.22) |
| J.K Simmons | Vern Schillinger | Colonel Alexander Nathaniel Rausch | "For God And Country" (Episode 4.12) |
| Tim McAdams | Johnny Post | James Douglas | "Prison Riot" (Episode 5.3) |
| O.L Duke | Paul Markstram | Alvin Taylor | "Just An Old Fashioned Love Song" (Episode 7.3) |
| Austin Pendleton | William Giles | Medical Examiner George Griscom | 1998- |
| Chris Meloni | Christopher Keller | Bounty Hunter Dennis Knoll | "Wanted Dead Or
Alive: Part One"
(Episode 7.6) "Wanted Dead Or Alive: Part Two" (Episode 7.7) |
| Luis Guzman | Raoul Hernandez A.K.A "El Cid" | Lorenzo Madera | "Son Of A Gun" (Episode 1.3) |
| Kevin Conway | Seamus O'Reily | Joseph Cordero | "Heartbeat" (Episode 4.5) |
| Scott Winters | Cyril O'Reily | Eddie Dugan | "Partners And Other
Strangers: Part One" (Episode 5.21) "Partners And Other Strangers: Part Two" (Episode 5.22) |
| Tim McAdams | Johnny Post | James Douglas |
"Autofocus" (Episode 4.3)
"Prison Riot" (Episode 5.3) |
| Edward Herrmann | Harrison Beecher | F.B.I Agent Thomas Pandolfi | "Me, Myself, And I" (Episode 5.5) |
| Kathryn Erbe | Shirly Bellinger | Rita Hale | "All Is Bright" (Episode 6.8) |
| Granville Adams | Zahir Arif | Officer Jeff Westby |
"Sniper (1)" (Episode 4.8) "Have a Conscience" (Episode 5.13) "Pit Bull Sessions" (Episode 6.15) "Full Court Press" (Episode 6.18) "Secrets" (Episode 6.20) "Finnegan's Wake" (Episode 6.21) "White Lies" (Episode 5.6) "Birthday" (Episode 6.6) "Sins Of The Father" (Episode 6.10) |
| Terry Kinney | Tim McManus | Richard Laumer | "Map Of The Heart" (Episode 4.19) |
| Reg E. Cathey | Martin Querns | Bernard Weeks | "Full Court Press"
(Episode 6.18) Homicide:The Movie (2000) |
| J.D. Williams | Kenny "Bricks" Wangler | Damon "Casper" Kelly | "The Why Chromosome" (Episode 7.20) |
| Edie Falco | Officer Diane Wittlesey | Eva Thormann | "Son Of A Gun"
(Episode 1.3) "A Shot In The Dark" (Episode 1.4) "Dog And Pony Show" (Episode 1.6) "Crosetti" (Episode 3.6) "Double Blind" (Episode 5.18) |
| Zeljko Ivanek | Governor James Devlin | Assistant State's Attorney Ed Danvers | 1993- |
| Steve Ryan | Officer Mike Healy | Florida Bounty Hunter | "Wanted Dead Or Alive: Part Two" (Episode 7.7) |
| Charles S. Dutton | Alvah Case | Elijah Sanborn | "Prison Riot" (Episode 5.3) |
| Kristen Rohde | Officer Claire Howell | Officer Sally Rogers |
"Nearer My God To Thee" (Episode 3.1) "The Last Of The Watermen" (Episode 3.5) "Happy To Be Here" (Episode 3.7) "Cradle To Grave" (Episode 3.11) "Law And Disorder" (Episode 3.16) "Fire"(Part 2) (Episode 4.2) "Heartbeat" (Episode 4.5) "Justice" (Part 1) (Episode 4.14) "Work Related" (Episode 4.22) "Bad Medicine" (Episode 5.4) "The Documentary" (Episode 5.11) "Kaddish" (Episode 5.17) |
| Robert Clohessy | Officer Sean Murphy | Detective Jones | "Partners" (Episode 3.12) |
| Tom Atkins | Mayor Wilson Lowen | C.I.A Agent Grenville Rawlins (Ret.) | "The Twenty Percent Solution (Episode 7.4) |
| Skipp Sudduth | F.B.I Agent Lenny Burrano | Angelo Mancini | "Bones Of Contention" (Episode 7.11) |
| Paul Schulze | Officer Rick Heim | Hitman Agent | "Son Of A Gun" (Episode 1.3) |
