How many times have you been watching TV and said, "Hey, isn't that ..."? This Fall TV season is full of those familiar faces, from supporting players who are getting their time to shine in new projects to industry veterans making their way back to the small screen.
James Wolk -- a.k.a. "Mad Men's" Bob Benson -- is one of those stars that's poised to become a household name. After several memorable TV stints, from Fox's very short-lived "Lone Star" to "Happy Endings" and "Shameless," Wolk is truly a standout opposite Robin Williams in CBS's "The Crazy Ones."
Viewers will also be treated to some stars we love from other projects, now in very different roles. Former "Battlestar Galactica" Cylon Tricia Helfer is trading in that slinky red dress for a cowboy hat in ABC's "Killer Women"; "Harold & Kumar" star John Cho is going from comedy with last season's canceled "Go On" to time-traveling sci-fi with Fox's "Sleepy Hollow"; and Malin Akerman can now finally be seen on TV again for longer than "Childrens Hospital's" 15-minute episodes with ABC's "Trophy Wife."
Click through the slideshow below to find out where you've seen all those familiar faces of fall TV before.
Malin Akerman, "Trophy Wife" (ABC)
Malin Akerman first charmed us on HBO's short-lived "The Comeback," but has been making us laugh on Adult Swim's "Childrens Hospital" -- we're happy to have her on TV for more than 15 minutes a week.
Geoff Stults, "Enlisted" (Fox)
Geoff Stults is best known for dramas "7th Heaven," "October Road," "Happy Town" and, most recently, Fox's short-lived "Bones" spin-off "The Finder," but we loved seeing him play funny for his arc on "Ben And Kate" last year, and now he's a comedic leading man.
Nate Corddry, "Mom" (CBS)
This fall, Nate Corddry will be romancing Anna Faris on "Mom," but we know him from "Harry's Law," "Childrens Hospital," "United States of Tara" and his breakout role as one of the stars of the show-within-the-show on Aaron Sorkin's short-lived "Studio 60 on the Sunset Strip."
Vanessa Lengies, "Mixology" (ABC)
Before taking on her "Mixology" role, Vanessa Lengies recently made music on "Glee." Her other roles include "American Dreams," "Hawthorne" and "Rules Of The Engagement."
Peyton List, "The Tomorrow People" (The CW)
Before heading to The CW, Peyton List was probably most known for playing Roger Sterling's wife Jane on "Mad Men," but she's also had stints on "As the World Turns," "90210" and "FlashForward."
Chris Lowell, "Enlisted" (Fox)
Before joining up with Fox's "Enlisted," Chris Lowell had roles on "Veronica Mars," "Private Practice" and "Life As We Know It."
Maggie Lawson, "Back In The Game" (ABC)
Yep, that's "Psych's" Juliet O'Hara -- she's now playing a single mom who moves back in with her dad (James Caan) and starts coaching her son's little league team.
Minka Kelly, "Almost Human" (Fox)
Minka Kelly made hearts swoon on "Friday Night Lights" as Lyla Garrity. After "FNL," Kelly starred in ABC's short-lived "Charlie's Angels" reboot and appeared on NBC's "Parenthood." She's heading to the future this season on Fox's "Almost Human."
Stuart Townsend, "Betrayal" (ABC)
He may have some major betrayals on his hands this TV season, but before heading to ABC, Stuart Townsend starred in 2003's "The League Of Extraordinary Gentlemen" and appeared on "Night Stalker" and "XIII: The TV Series."
Michael Trucco, "Killer Women" (ABC)
Michael Trucco's face has been all over the small screen, with stints on "Revenge," "How I Met Your Mother," "Battlestar Galactica," "Castle," "Fairly Legal," "One Tree Hill" and more.
Megan Hilty, "Sean Saves The World" (NBC)
Megan Hilty took the spotlight in NBC's "Smash," and now she's trading in the musical drama world for comedy in "Sean Saves the World," co-starring alongside "Smash" Season 2 guest star Sean Hayes.
Joe Lo Truglio, "Brooklyn Nine-Nine" (Fox)
Funnyman Joe Lo Truglio has had memorable parts on the big screen ("Wet Hot American Summer," "Superbad") and small ("Reno 911!"), and now he'll bring the funny opposite Andy Samberg and Andre Braugher in Fox's new cop comedy "Brooklyn Nine-Nine."
Hannah Ware, "Betrayal" (ABC)
Hannah Ware must really like drama! Before taking on the lead role in ABC's new adultery-thriller, Ware played Emma Kane (Kelsey Grammer's TV daughter) on Starz's "Boss."
Brenda Song, "Dads" (Fox)
In addition to hitting the big screen on "The Social Network," Brenda Song starred in "The Suite Life Of Zack And Cody." Her other TV credits include memorable fast-talking roles on "Scandal" and "New Girl."
Hayley Orrantia, "The Goldbergs" (ABC)
Before she decided to flash back to the '80s for "The Goldbergs," Hayley Orrantia was a contestant on "The X-Factor" in 2011. Maybe we'll get to see her belt out some sweet '80s hair band jams ...
Spencer Grammer, "Ironside" (NBC)
Spencer Grammer got her start on "As The World Turns" before starring in ABC Family's college dramedy "Greek." This season, she's graduated to a new police drama, NBC's "Ironside."
Adan Canto, "Mixology" (ABC)
Adan Canto is leaving the cult life from "The Following" behind and is heading to the bar in "Mixology."
Isaiah Washington, "The 100" (The CW)
It's been a while since Isaiah Washington was regularly on our TV screens. After three seasons on "Grey's Anatomy," his next small screen gig was starring in the very short-lived "Bionic Woman" remake.
Karl Urban, "Almost Human" (Fox)
Karl Urban got hist start playing Julius Caesar and Cupid on "Xena: Warrior Princess," before transitioning to film roles in the "The Lord of the Rings" trilogy and "Star Trek." This season he co-stars opposite Michael Ealy on Fox's "Almost Human."
Marc Blucas, "Killer Women" (ABC)
Viewers will remember Marc Blucas from "Buffy the Vampire Slayer" and, more recently, USA's "Necessary Roughness." He's also popped up on "Castle," "Body of Proof" and more.
Michael Socha, "Once Upon A Time In Wonderland" (ABC)
Michael Socha is headed to the small screen this fall for ABC's "Once Upon A Time" spinoff, but fans of the UK's "Being Human" will recognize him as Tom McNair.
Michaela Watkins, "Trophy Wife" (ABC)
Michaela Watkins is always memorable, no matter how small the role, from her brief stint on "Saturday Night Live" to HBO's "Enlightened," "Curb Your Enthusiasm" and "The New Adventures of Old Christine."
Lili Taylor, "Almost Human" (Fox)
Beyond her memorable early movie roles ("Mystic Pizza" and "Say Anything..." are favorites), Lili Taylor has starred on small screen hits like "Six Feet Under" and Netflix's "Hemlock Grove." This season, Taylor will appear in Fox's future-set cop drama "Almost Human."
James Wolk, "The Crazy Ones" (CBS)
He's going toe-to-toe with Robin Williams on "The Crazy Ones" this fall, but James Wolk made quite a splash as the sexually ambiguous Bob Benson on "Mad Men" this past spring -- not to mention his role on USA's "Political Animals" and a funny turn on "Happy Endings."
Liza Lapira, "Super Fun Night" (ABC)
Before she teamed up with Rebel Wilson, Liza Lapira played Emma Stone's BFF in "Crazy, Stupid, Love" on the big screen, and Krysten Ritter's crazy neighbor on "Don't Trust The B**** In Apartment 23." She's also had memorable TV roles on "Dollhouse," "NCIS," "Dexter" and "Huff."
Kurt Fuller, "Us & Them" (Fox)
Kurt Fuller has popped up on everything from "Scandal," "Parenthood," "Psych" and "The Good Wife" to "Supernatural," "Desperate Housewives" and "Alias."
Jayma Mays, "The Millers" (CBS)
After stints on "Ugly Betty" and "Heroes," Jayma Mays made music on "Glee" for years before leaving the show. She can now be seen on FX's "The League," and has a new, permanent gig playing Will Arnett's sister on CBS's "The Millers."
Orlando Jones, "Sleepy Hollow" (Fox)
Yes, he was the 7-Up pitchman for years, but Orlando Jones' TV credits also include "Everybody Hates Chris," "MADtv" and "Rules of Engagement."
Chloe Bennet, "Agents Of S.H.I.E.L.D." (ABC)
Before taking on the role of Skye in Joss Whedon's highly-anticipated new series, Chloe Bennet played Hailey on the freshman season of "Nashville."
Amanda Setton, "The Crazy Ones" (CBS)
Before signing on to work with Sarah Michelle Gellar and Robin Williams, Amanda Setton was known for her roles on "One Life to Live," "Gossip Girl" and "The Mindy Project."
Ricardo Chavira, "Welcome To The Family" (NBC)
Ricardo Chavira stars as Chuey Hernandez in NBC's new culture-clash comedy "Welcome To The Family," but he'll always be known for living on Wisteria Lane as Carlos Solis on "Desperate Housewives."
Aimee Teegarden, "Star-Crossed" (The CW)
Aimee Teegarden will romance Matt Lanter on The CW's "Star-Crossed" this season, but she'll always be in "Friday Night Lights" fans' hearts as Julie Taylor, the daughter of Coach and Mrs. Coach. Her other TV credits include "90210" and "CSI."
Ella Rae Peck, "Welcome To The Family" (NBC)
Before joining NBC's "Welcome To The Family" as the young female lead, Ella Rae Peck was stirring up trouble on "Gossip Girl" and "Deception."
Henry Ian Cusick, "The 100" (The CW)
It's Desmond, brotha! Henry Ian Cusick had a breakout role in the US with "Lost" before heading to "Scandal," "Body of Proof" and "The Mentalist." Now he's going sci-fi again with The CW's "The 100."
John Cho, "Sleepy Hollow" (Fox)
One part of "Harold and Kumar," new "Sleepy Hollow" star John Cho has been popping up on the small screen in a variety of roles, from "30 Rock" and "Ugly Betty" to last season's "Go On," but this new gig is more similar to his dramatic genre work like "FlashForward."
Kerri Kenney, "Us & Them"
Viewers will remember Kerri Kenney as Deputy Trudy Wiegel on "Reno 911!" and its subsequent movie. Her other TV credits include "Anger Management," "Party Down" and "Still Standing." Kenney plays Alexis Bledel's mom in Fox's new comedy "Us & Them."
Brent Sexton, "Ironside" (NBC)
Who killed Rosie Larsen? Don't ask Brent Sexton -- it's still a touchy subject for the man who played her dad Stan on AMC's "The Killing." Sexton has played cops before on "Birds of Prey," "Justified" and "Life," and he's doing it again as Blair Underwood's TV partner on "Ironside."
J.B. Smoove, "The Millers" (CBS)
J.B. Smoove has been a comedy player for years, with memorable stints on "Everybody Hates Chris," "'Til Death" and, of course, as Larry David's favorite sparring partner on "Curb Your Enthusiasm." He's now Will Arnett's sidekick BFF.
Michael Ealy, "Almost Human" (Fox)
As an android cop, Michael Ealy co-stars opposite Karl Urban in Fox's "Almost Human." His other TV credits include stints on "The Good Wife" and "Californication," as well as a starring role on USA's short-lived "Common Law."
Matt Lanter, "Star-Crossed" (The CW)
On The CW's "Star-Crossed," think of Matt Lanter as an alien Romeo to Aimee Teegarden's human Juliet. Lanter previously starred in The CW's "90210" and "Commander In Chief," and he's lent his voice to animated favorites "Star Wars: The Clone Wars" and "Ultimate Spider-Man."
Matt Long, "Lucky 7" (ABC)
Matt Long got his start on The WB's "Jack & Bobby," and has since appeared on "Private Practice" and "Mad Men."
Michael Ian Black, "Us & Them" (Fox)
Viewers know Michael Ian Black for his always-witty commentary on every VH1 special ever, as well as his sketch comedy cult-favorite shows "The State," "Stella" and "Michael & Michael Have Issues."
Tricia Helfer, "Killer Women" (ABC)
Pre-"Killer Women," Tricia Helfer played Number Six/Caprica on "Battlestar Galactica" and appeared in "Community," "The Firm" and more.