Shawna Baez uses her teleportation to break Clay Parker out of prison in episode 1x12 "Crazy for You". Joe and Barry question James Jesse in his secure cell in episode 1x17 "Tricksters". Weather Wizard is breaks Captain Cold and The Trickster out of prison in episode 2x09 "Running to Stand Still". Appears in 3 more episodes.
Barry goes looking for Iris only to find her heading home with Eddie in episode 1x12 "Crazy for You".
A young Iris meets Barry after his mother's death in episode 2x18 "Versus Zoom".
Amunet takes Caitlin to an abandoned hospital to save the life of Dominic Lanse, a meta she wants to sell in episode 4x09 "Don't Run".
Cecile meets with the judge to discuss Allegra's guilty plea but asks for bail instead when she uses her powers to realize Allegra might be innocent in episode 6x02 "A Flash of the Lightning".
Exterior of For Nicholas Army base in episode 4x10 "You Can't Handle This Episode".
Source: Psych Forums
Shawn and Gus arrive at the prison for Jack Atwater's transfer back to police custody only to see him shot in episode 7x01 "Santabarbaratown 2".
The Psych team sees one of the actors with the director beneath the theatre in season 7 special "Psych the Musical".
The students practice casting spells without their voices in episode 1x07 "The Mayakovsky Circumstance". Quentin visits the recovering Alice briefly in her room before heading off to Fillory in episode 2x12 "Ramifications". Quentin gives Alice a potion to prevent her from harming herself and then returns later with a plateful of bacon in episode 2x13 "We Have Brought You Little Cakes".
Julia talks to the detective about Hannah's death in episode 1x07 "The Mayakovsky Circumstance".
Mike is held and interrogated in a magic-proof cell in episode 1x08 "The Strangled Heart". Quentin is held in a werewolf-proof cell under the school while Professor Lipson examines his condition. Later Julia wakes up inside the isolation cell in episode 2x09 "Lesser Evils". Dean Fogg releases Julia from the cell even though she doesn't think she deserves to be in episode 2x10 "The Girl Who Told Time". Appears in 1 more episode.
Kady and Julia visit a local vampire to get information about the gods in episode 1x11 "Remedial Battle Magic".
Julia and Kady head into the lair of a lamia and ask her about the god she used to serve in episode 1x11 "Remedial Battle Magic".
Josh takes Quentin and Julia to a party thrown by the god Bacchus in an attempt to find out about the old gods in episode 3x01 "The Tales of the Seven Keys".
Kady and Josh talk to a kid at the hospital who saw the dinosaur in episode 3x02 "Heroes and Morons".
The gang is talking after Professor Lipson is brought to the hospital when Alice's cat goes mad and explodes in episode 3x02 "Heroes and Morons".
Quentin is walking through town by himself when he notices that the book has written a second chapter in episode 3x02 "Heroes and Morons".
Oliver saves Laurel and Peter Declan from a prison riot in episode 1x04 "An Innocent Man".
Quentin visits The Count in a mental institution when Vertigo reemerges in episode 1x19 "Unfinished Business".
Laurel and Roy attack the police station from which Brick is controlling the Glades in episode 3x12 "Uprising".
Thea and Laurel search the inside of the abandoned hospital for Diggle's brother and Thea ends up coming face-to-face with Darhk in episode 4x07 "Brotherhood".
The team follows Felicity's intel to an abandoned hospital where Prometheus is holding Susan Williams in episode 5x16 "Checkmate".
Oliver and Diggle head into Adrian Chase's house in search of Susan Williams in episode 5x16 "Checkmate".
The team sneaks into the asylum to locate Dr. Deegan and recover the book but when confronted he releases all of the patients from their cells in episode 7x09 "Elseworlds, Part 2".
The people on a tour at a museum on Tegalus are shocked when the Stargate activates and the MALP arrives in episode 8x05 "Icon".
Appears as the military base in Caledonia Capital City in episode 9x15 "Ethon".
Sam is taken to an abandoned hospital and her body's reaction to Jolinar is studied in episode 5x11 "Desperate Measures".
The people of Pangar are holding a Goa'uld queen and forcing it to spawn symbiotes for them in episode 6x10 "Cure".
Clive and Liv talk after interviewing Jason in episode 1x10 "Mr. Berserk".
The smuggler Bruce tries to reassure Annie Wallace as they bribe their way through a checkpoint in episode 4x03 "Brainless in Seattle, Part 1". The delegates pass through the checkpoint on their way into the city and on their way out Dr. Bishop scratches a few of them during their checkups in episode 5x08 "Death of a Car Salesman".
Annie Wallace expreses her doubts about climbing a ladder to the surface but the smuggler Bruce Holtz reassures her in episode 4x03 "Brainless in Seattle, Part 1".
Five years ago, Stacey Boss talks to Martin Roberts about his brand new drug Utopium and a year later Scott E arrives and picks up the tainted batch in episode 5x08 "Death of a Car Salesman".
Rip, Snart, and Sara attempt to gain the assistance of the Bratva in breaking into the prison in episode 1x05 "Fail-Safe".
Snart and Rip head to the local sheriff's department to discuss the murders in episode 1x08 "Night of the Hawk".
The Legends are heading back to the ship when they are confronted by the Justice Society of America in episode 2x01 "Out of Time". The Legends end up fighting and are captured by the JSA in episode 2x02 "The Justice Society of America".
Source: Dominic Purcell — Instagram
Ray & Amaya are captured and held by Baron Krieger in episode 2x02 "The Justice Society of America".
The Legends search the train station for signs of the adoration where Nate spots Eliot Ness who is taken away by two police officers in episode 2x08 "The Chicago Way".
Nate poses as Eliot Ness to gain the help of the U.S. Marshals to search for Al Capone's ledger in episode 2x08 "The Chicago Way".
Sara and Stein wake up to find themselves strapped to chairs in a basement where they are asked about the amulet in episode 2x08 "The Chicago Way".
Constantine attempt to exorcise a demon from a young girl but it turns out to be more than he can handle so he returns with the Legends to help in episode 3x10 "Daddy Darhkest".
Nate and Ray go to try to stop Rasputing from killing Yusupov but they are too late in episode 5x02 "Meet the Legends".
Constantine and Gary go to deal with a possessed kid but Constantine realizes he knows the demon in episode 5x02 "Meet the Legends".
Kara fights with Hank Henshaw who has been transformed into Cyborg Superman and then she escapes through tunnels with Mon-El in episode 2x07 "The Darkest Place".
Deegan performs unethical experiments in the opening and after being defeated he is locked up next door to Psycho-Pirate in episode 4x09 "Elseworlds, Part 3".
Eve condescendingly briefs Snowbird on her mission while they sneak underground in maintenance uniforms in episode 4x17 "All About Eve".
Lena and Kara use some leverage on the warden to gain access to Lex's old cell so they can search for evidence in episode 4x18 "Crime and Punishment".
Mulder and Scully go inside the hospital to question Billy Miles and Peggy O'Neil and Mulder is able to confirm that Peggy has the bumps on her back in pilot episode.
Mulder & Scully are summoned by some mysterious government agents to investigate some strange deaths in episode 1x06 "Shadows".
Scully calls Mulder from the hospital where she is working to let him know about Tad Tad O'Malley in episode 10x01 "My Struggle". The agents talk to Sister Mary about the involvement of Augustus Goldman with the hospital in episode 10x02 "Founder's Mutation". Scully and Einstein work to cure the sickness in episode 10x06 "My Struggle II". Appears in 1 more episode.
Scully and Mulder search the dark basement for the Trashman and confront the artist who created it in episode 10x04 "Home Again".
Daryl Landry is overseeing the homeless settlement when he follows a sound into an empty wing of the hospital in episode 10x04 "Home Again".
Scully sits by her mother in the hospital while she is in a coma in episode 10x04 "Home Again".
From episode 2x11 "Excelsis Dei".
Source: Christina McClellan
Mulder and Scully interview Arkie Seavers with his lawyer present in episode 11x03 "Plus One".
Mulder and Scully question the landlord at the apartment building about the mysterious tenants upstairs and then Mulder heads to the basement to search for Scully in episode 11x09 "Nothing Lasts Forever".
Hospital where the team goes to investigate the dustifications in episode 2x06 "Earthling".
Mental institution where the patient has brain surgery at the start of episode #210 "Grey Matters".
Mental hospital where the Fringe team goes to talk to Sean Keenan about the voices he is hearing in episode 4x13 "A Better Human Being".
Peter is brought to the hospital after being injured by The Machine in episode 3x20 "6:02 AM EST".
Peter, Olivia, and Etta travel enter an Observer facility to rescue Walter in episode 5x01 "Transilience Thought Unifier Model-11".
Vanessa and Axel climb out of the tunnel after leaving the hospital in episode 1x03 "Stay Inside".
From episode #105 "Fear Her".
The resistance is ambushed while attempting to sneak into the vampire lair in episode 1x06 "Nothing Matters".
Rufus and Wyatt find Roosevelt at the fair thinking he is Flynn's target and follow one of Flynn's men in episode 1x11 "The World's Columbian Exposition".
Source: What's Filming
H.H. Holmes locks Lucy up in the basement where Lucy tries to stop him from killing her in episode 1x11 "The World's Columbian Exposition".
Inside the abandoned mental hospital Shawn and Gus find a dog guarding the high security wing.
Juliet and the boys chase Billy McGoldrick but he manages to escape their grasp.
Woody and Henry find themselves battling Heather Rockrear and getting their asses kicked.
El Proveedor interrogates a criminal to find out about Shawn.
Juliet, Shawn, and Gus head to the morgue for Sam Sloan's autopsy and find Woody working as the coroner's assistant.
Interior of the Manticore facility Max and the other kids escape from in the pilot, and where Max attempts her rescue mission in episode 1x20 "…and Jesus Brought a Casserole".
Location of the trial that Max has to break into in episode 1x09 "Red".
Max breaks into this building to steal some information in episode 1x03 "C.R.E.A.M.".
Jack Sylvane gets some items from a locker and then attacks a man in pilot episode.
Rebecca and Diego locate Paxton Petty's bomb stash to a tomb in episode 1x06 "Paxton Petty".
Johnny McKee uses the chemistry lab in this school to mix his poisons, the team tracks down his lab here later in episode 1x07 "Johnny McKee".
From episode 1x07 "Johnny McKee".
Interiors of the hospital appear as the GDD office starting in episode 1x03 "Reins of a Waterfall".
The virtual room of doors Clarice visits to talk to the STO in episode 1x03 "Reins of a Waterfall".
Kate and Sophie are caught kissing and asked to sign a document denying it or be expelled from their military school in pilot episode. Jacob talks to Sophie before the hearing and convinces her of the risks involved with telling the truth in episode 1x07 "Tell Me the Truth".
Crows Security raids a Wonderland Gang hideout but find it empty in episode 1x02 "The Rabbit Hole".
Kate wakes up after her encounter with Alice and finds herself in an illegal clinic run by her step-sister Mary in pilot episode. Kate visits Mary's clinic to get one of the members of the Wonderland Gang who Mary is treating to take a message to Alice in episode 1x02 "The Rabbit Hole". Mary gives a kid an injection in episode 1x03 "Down Down Down". Appears in 4 more episodes.
Kate interrogates her captive Dodgson to learn about Alice in episode 1x02 "The Rabbit Hole". Kate interrogates Alice for her grand plan but Alice insists on taking her for a road trip in episode 1x05 "Mine Is a Long and a Sad Tale".
Kate follows the tracker she implanted in Dodgson, knocks out the masked gang members, and kidnaps Alice in episode 1x05 "Mine Is a Long and a Sad Tale". The Rifle brings Alice payment in exchange for the anti-Batwoman gun in episode 1x07 "Tell Me the Truth".
Alice steals the skin off several corpses from the morgue in episode 1x05 "Mine Is a Long and a Sad Tale".