11 Arrow - Austin Butler (ex-Wilke, Switched at Birth)
11 The Mysteries of Laura - Kelly Rutherford (ex-Sam, Generations)
11 Criminal Minds - Lisa Brenner (ex-Maggie, Another World)
11 Nashville - Mario Lopez (ex-Christian, The Bold and the Beautiful)
13 Constantine - Emmett J Scanlan (ex-Brendan, Hollyoaks)
15 CSI: Crime Scene Investigation (9 p.m. ET) - Hunter King (Summer, The Young and the Restless); Lisa Rinna (ex-Billie, Days of our Lives)
Rinna guest stars in the first hour of new back-to-back episodes as Tori Nolan, the wife of the director of the San Diego crime lab. King plays Lexi Nolan.
15 CSI: Crime Scene Investigation (10 p.m. ET) - Mark Valley (ex-Jack, Days of our Lives); Eric Roberts (ex-Ted, Another World)
17 Chicago Fire - Bree Williamson (ex-Jessica, One Life to Live)
Casey (Jesse Spencer) starts seeing a new woman, Beth (Williamson), but interesting complications quickly unfold.
19 The Big Bang Theory - Nathan Fillion (ex-Joey, One Life to Live)
In a cameo, Fillion is said to be playing himself, or is he?
19 The Blacklist - Eric Nelsen (ex-AJ, All My Children)
19 Allegiance - Patricia Kalemnber (ex-Meredith, Texas)
20 Hawaii Five-0 - Melina Kanakaredes (ex-Eleni, Guiding Light)
24 Marvel's Agent Carter - Lyndsy Fonseca (ex-Colleen, The Young and the Restless); Erin Torpey (ex-Jessica, One Life to Live)
24 Forever - Mackenzie Mauzy (ex-Phoebe, The Bold and the Beautiful); Hilarie Burton (ex-Peyton, One Tree Hill); Janet Zarish (ex-Janet, One Life to Live)
25 Law & Order: Special Victims Unit - Marcia Cross (ex-Liz, The Edge of Night)
1 The Good Wife - Laura Benanti (Sadie, Nashville)
4 CSI: Cyber - Robert Gant (David, The Young and the Restless)
TBD Once Upon A Time - Sebastian Roche (Jerry, General Hospital)
Roche will play King Stefan, the father of Aurora (Sarah Bolger), who has a complicated past with Maleficent (Kristin Bauer Van Straten).
1 6th Annual Indie Series Awards - Eric Martsolf (Brady, Days of our Lives)
Martsolf is hosting this year's ISAs from the historic El Portal Theatre.
TBD Family Guy - Bryan Cranston (ex-Walter, Breaking Bad)
TBD Family Guy - Jon Hamm (ex-Don, Mad Men)
TBD Family Guy - Jeff Daniels (Will, The Newsroom)
TBD Gotham - Rob Gorrie (ex-Matthew, Gotham)
Gorrie teased his involvement with the Fox series in December, and will portray John Grayson, reports ComicBook.com. Gorrie posted a photo of his script last week, and shared a picture on set with show star Ben McKenzie.
TBD CSI: Cyber - McKenna Grace (Faith, The Young and the Restless)
TBD The Following - Eric Nelsen (ex-AJ, All My Children)
TBD The Last Ship - Bren Foster (ex-Quinn, Days of our Lives)
TBD Mistresses - Justin Hartley (Adam, The Young and the Restless)
TBD Radio Hype (Hallmark Channel Movie) - Alison Sweeney (ex-Sami, Days of our Lives)
TBD The Vampire Diaries - Brooke Newton (ex-Colby, All My Children)
TBD Veep - Orlagh Cassidy (ex-Doris, Guiding Light)
If you see a name missing or find out an official airdate, add it in our Comments section. We've included one familiar role for each actor (many of them are known for several roles).