What If the Arrowverse tied into Justice League: Mortal?

This would be a hypothetical version of the Arrowverse that would run parallel with the DCEU JLM page I've previously made.

Green Arrow & The Black Canary
Airing: 2012-20

Seasons: 8

Plot: When presumed-dead billionaire playboy Oliver Queen returns home to Star City after five years stranded on a remote island in the Pacific, he hides the changes the experience had on him. By day he picks up where he left off, playing the carefree philanderer he used to be, but at night he dons the alter ego of the Green Arrow and works to right the wrongs of his family and restore the city to its former glory. Complicating his mission is the Black Canary, another crimefighter living in Star City determined to stopping the Green Arrow's killing spree.

Protagonists:


 * Stephen Amell as Oliver Queen/Green Arrow
 * Katie Cassidy as Dinah Lance/Black Canary
 * David Ramsey as Michael Holt/Mr. Terrific
 * Paul Blackthorne as Quentin Lance
 * Colton Haynes as Roy Harper/Arsenal (S1-S5)
 * Willa Holland as Naomi Singh/Dart (S1-S5)
 * Caity Lotz as Laurel Lance/Black Canary (S2-S3)
 * Miki Ishikawa as Emiko Queen/Red Arrow (S3-)
 * Madison McLaughlin as Mia Dearden/Speedy (S5-)
 * Emily Bett Rickards as Artemis Crock/Arrowette (S5-)
 * Sea Shimooka as Jade Nguyen/Cheshire (S6)
 * Jonathan Groff as Connor Hawke/Green Arrow (S7-)
 * Katherine McNamara as Mia Queen/Blackstar (S7-)

Antagonists:


 * John Barrowman as Malcolm Merlyn/Dark Archer (S1-S5)
 * Manu Bennett as Slade Wilson/Deathstroke (S1-S2)
 * Matthew Nable as Kurt Calhoun/Prometheus (S3)
 * Neal McDonogh as Werner Zytle/Count Vertigo (S4)
 * Josh Segarra as Simon Lacroix/Komodo (S5)
 * Vinnie Jones as Danny Brickwell/Brick (S6)
 * Colin Donnell as Tommy Merlyn/Dark Archer (S7)

The Flash
Airing: 2014-23

Seasons: 9

Plot: At 11, Barry Allen's life changed completely when his mother died in a freak accident and his innocent father was convicted of her murder. Now a crime-scene investigator, his dedication to learn the truth about his mother's death drives him to follow up on every new scientific advancement and urban legend. When his latest obsession - a particle accelerator heralded as a world-changing invention - causes an explosion, it creates a freak storm and Barry is struck by lightning. He awakes from a coma nine months later with the power of superspeed. When he learns that others who have gained powers use them for evil, he dedicates himself to protecting the innocent, while still trying to solve the older mystery. Protagonists:


 * Grant Gustin as Barry Allen/The Flash
 * Candice Patton as Iris West
 * Carlos Valdes as Cisco Ramon/Vibe
 * Danielle Panabaker as Caitlin Snow/Killer Frost
 * Tom Cavanagh as Harrison Wells/Harry Wells/H.R. Wells/Sherloque Wells/Nash Wells/The Pariah
 * Jesse L. Martin as Darryl Frye
 * Rick Cosnett as Eddie Thawne (S1)
 * Trevor Jackson as Wally West/Kid-Flash (S2-)
 * Violett Beane as Jesse Wells/The Flash (S2-S4)
 * Malese Jow as Linda Park (S4-)
 * Ronnie Raymond/Firestorm (S4-)
 * Hartley Sawyer as Ralph Dibny/Elongated Man (S5-)
 * Thomas Barbusca as Bart Allen/Impulse (S5)

Antagonists:


 * Tom Cavanagh as Harrison Wells/Eobard Thawne/Reverse-Flash (S1)
 * Teddy Sears as August Heart/Godspeed (S3)
 * Tom Felton as Sam Scudder/Mirror Master (S3)
 * Grant Gustin as Barry Allen/Paradox (S4)
 * Chris Klein as Orlin Dwyer/Cicada (S5)
 * Neil Sandlands as Clifford DeVoe/The Thinker (S5)
 * Sendhil Ramamurthy as Ramsey Rosso/Bloodwork (S6)
 * Stephen Amell as Oliver Queen/Red Death (S7)
 * Rick Cosnett as Eddie Thawne/Cobalt Blue (S8)
 * Nekron (S9)

Hellblazer
Airing: 2015-21

Seasons: 6

Plot: Demon hunter and master of the occult John Constantine figured there was no longer any point in fighting the good fight since his soul belongs to the netherworld, but when demons target the daughter of one of his closest friends, Liv, he reluctantly rejoins the battle. It turns out that Liv has second sight, an ability to see other worlds and predict supernatural occurrences, a power that makes her a threat to the new evil rising from the shadows. She and Constantine take their combined skills on the road, travelling the country to find demons and send them back to hell.

Protagonists:


 * Matt Ryan as John Constantine
 * Charles Halford as Francis "Chas" Chandler
 * Angélica Celaya as Mary "Zed" Martin (S1-S2)
 * Harold Perrineau as Manny (S1)
 * Lucy Griffiths as Liv Aberdine (S1)
 * Jason Isaacs as Jason Blood/Etrigan (S2-)
 * Tala Ashe as Zatanna Zatara (S2-)
 * Alia Bhatt as Rachel Roth/Raven (S3)

Antagonists:


 * Michael James Shaw as Papa Midnite (S1)
 * Nergal (S2)
 * Klarion the Witch Boy (S3)
 * Tony Todd as Trigon (S3)

Legends of Tomorrow
Airing: 2016-22

Seasons: 7

Plot: After seeing what doom the future holds, time-traveling rogue Rip Hunter realizes heroes alone are not enough to prevent the impending catastrophe that threatens the planet. Tasked with recruiting both heroes and villains, Rip brings together a ragtag team of divergent talents, which includes the likes of Laurel Lance, Ted Kord, and Heat Wave. Although the team continually adds and loses members, their goal is always the same -- prevent supervillains from destroying time itself.

Protagonists:


 * Caity Lotz as Laurel Lance/White Canary
 * Nick Zano as Nate Heywood/Booster Gold
 * Haley Lu Richardson as Courtney Whitmore/Stargirl
 * Brandon Routh as Ted Kord/Blue Beetle (S1-S5)
 * Megalyn Echikunwoke as Mari McCabe/Vixen (S1-S5)
 * Arthur Darvill as Rip Hunter (S1-S3)
 * Victor Garber as Martin Stein/Firestorm (S1-S3)
 * Ronnie Raymond/Firestorm (S1-S3)
 * Juliana Harkavy as Dinah Drake/Black Canary (S2-S5)
 * Alan Scott/Green Lantern (S2)
 * Joel McHale as Jack Knight/Starman (S2)
 * Maisie Richardson-Sellers as Kendra Saunders/Hawkgirl (S2-)
 * Russell Tovey as Ray Terrill/The Ray (S3-)
 * Violett Beane as Jesse Wells/The Flash (S3)
 * Dominic Purcell as Mick Rory/Heatstroke (S4-S6)
 * Courtney Ford as Big Barda (S4-S5)
 * Orlando Bloom as Scott Free/Mister Miracle (S4-)
 * Lisseth Chavez as Jessica Cruz/Green Lantern (S6-)
 * Amy Pemberton as Gideon

Antagonists:


 * Chronos (S1)
 * Alexander Siddig as Vandal Savage (S2)
 * Matt Letscher as Eobard Thawne/Reverse-Flash (S3)
 * Dominic Purcell as Mick Rory/Heatstroke (S3)
 * Casper Crump as Kalibak (S4)
 * Kathy Bates as Granny Goodness (S5)
 * Raffi Barsoumian as Bishop (S6)
 * Amy Pemberton as Evil Gideon (S7)

Titans
Airing: 2017-22

Seasons: 6

Plot: In the year 2013, the Teen Titans; Dick Grayson, Jason Todd, Starfire, Arsenal, Donna Troy, Aqualad, and Kid Flash, were the heroes of Jump City until the deaths of Speedy and the second Robin, Jason Todd. Now, five years later, the team has disbanded with Kid Flash taking up the mantle of the Flash and the rest of the heroes retiring from crimefighting. This all changes when Tim Drake aka the new Robin is attacked by Red X, an alias formerly used by Dick. Now, Tim brings together the retired Titans to uncover the mystery of who Red X is and how to stop him for good.

Protagonists:


 * Ryan Potter as Dick Grayson/Nightwing
 * Jasmin Savoy Brown as Koriand'r/Starfire
 * Milo Manheim as Tim Drake/Robin
 * Maya Mitchell as Donna Troy (S1-S3)
 * Keiynan Lonsdale as Kaldur'ahm/Aqualad (S1-S3)
 * Maitreyi Ramakrishnan as Rachel Roth/Raven (S3-)
 * Armani Jackson as Gar Logan/Beast Boy (S3-)
 * Isaak Presley as Conner Kent/Superboy (S4-)
 * Ashley Liao as Artemis Crock/Arrowette (S4-)
 * Chella Man as Joseph Wilson/Jericho (S5-)
 * Emma Kenney as M'gann M'orzz/Miss Martian (S6)
 * Aidan Gallagher as Damian Wayne/Robin (S6)

Antagonists:


 * Dylan Playfair as Roy Harper/Red X (S1)
 * Manu Bennett as Slade Wilson/Deathstroke (S2 & S6)
 * Alyson Stoner as Tara Markov/Terra (S2)
 * Joseph Morgan as Sebastian Blood/Brother Blood (S3)
 * Tony Todd as Trigon (S3)
 * Ashleigh Murray as Komand'r/Blackfire (S4)
 * Jack Griffo as Jason Todd/Red Hood (S4)
 * Peter Capaldi as Dr. Arthur Light (S5)

Static
Airing: 2018-21

Seasons: 4

Plot: Virgil Hawkins is a high school student in Dakota City who, as a result of accidental exposure to an experimental mutagen in an event known as the Big Bang, gains the ability to control and manipulate electromagnetism. He uses these powers to become the superhero "Static". Countless others who were also exposed also gained a wide variety of mutations and abilities, many of whom use their abilities in selfish, harmful, and even criminal ways, and Static enters a battle that he finds out is much bigger than he had imagined.

Protagonists:


 * Myles Truitt as Virgil Hawkins/Static
 * Sean Ryan Fox as Richie Foley/Gear
 * Phil LaMarr as Robert Hawkins
 * Corrina Brown as Sharon Hawkins
 * Armani Jackson as Adam Evans/Rubber Band Man (S2-)
 * Cress Williams as Jefferson Pierce/Black Lightning

Antagonists:


 * Jharrel Jerome as Ivan Evans/Ebon (S1)
 * Caden Conrique as Francis Stone/Hotstreak (S1)
 * William Sadler as Simon Stagg (S2)
 * Kel Mitchell as Rex Mason/Metamorpho (S2)

Doom Patrol
Airing: 2019-22

Seasons: 4

Plot: Doom Patrol is a team of traumatized and downtrodden superheroes, each of whom has suffered a horrible accident that gave them superhuman abilities but also left them scarred and disfigured. The members of the team have found their purpose through The Chief and have come together to investigate some of the world's weirdest phenomena. After The Chief mysteriously disappears, though, the reluctant heroes find themselves called to action by Beast Boy, who comes to them with a mission that they cannot refuse. Doom Patrol -- part support group, part superhero team -- is a band of super powered freaks fighting for a world that wants nothing to do with them.

Protagonists:


 * Diane Guerrero as Kay Challis/Crazy Jane
 * April Bowlby as Rita Farr/Elasti Woman
 * Matt Bomer as Larry Trainor/Negative Man
 * Brendan Fraser as Cliff Steele/Robot Man
 * Armani Jackson as Gar Logan/Beast Boy
 * Timothy Dalton as Niles Caulder/The Chief (S1-S2)
 * Skye Roberts as Kay Challis (S3-)
 * Michelle Gomez as Laura De Mille/Madame Rouge (S4)

Antagonists:


 * Alan Tudyk as Eric Morden/Mr. Nobody (S1)
 * Lex Lang as The Candlemaker (S2-S3)
 * Michelle Gomez as Laura De Mille/Madame Rouge (S3)