- "A list of suspects, of course. People with grudges against us, many of them members of Riverdale's founding families, I'm sorry to say. Someone in this town killed Jason."
- —Cliff to Sheriff Keller[src]
Cliff was born and raised in Riverdale, where he attended Riverdale High School with Penelope, Fred, Hermione, FP, and among others. It was during this time that he would come to forge a fairly hostile rivalry with Hiram Lodge. Prior to the start of the series, Cliff married and had two children with Penelope Blossom, twins Cheryl and Jason.
Upon the mysterious drowning of his son, Jason, Cliff and Penelope joined the local authorities in retrieving their daughter, Cheryl from the edge of Sweetwater River. He proceeded to yell at the police as they failed in finding his son, despite dragging the river in search of him. The following week, as Jason's body was found at the shore of Sweetwater by Kevin Keller and Moose Mason, he and his wife stood aside as their son's body was taken into the ambulance. 
Cliff, Penelope and Cheryl arrived at the morgue to identify Jason's body. As the cloth was pulled off his head, Cheryl turned away in horror, as did Penelope, however, Cliff was far less emotional than the two ladies, mutely staring at the corpse of his son. The night of the annual fall Pep Rally, Cliff and Penelope sat in the front row of the bleachers as Mayor McCoy dedicated the event to the memory of Jason. Shortly after the performance of the River Vixens and Josie and the Pussycats, he became concerned as Cheryl raced off the stage crying. 
When Sheriff Keller interrogated Cheryl about the lies she had told regarding her last encounter with her brother, Penelope and Cliff interrupted in a state of anger and abruptly ended the meeting. Cliff demanded to know why his daughter was a suspect in his son's murder case. As they rushed Cheryl out of the office, Penelope wondered why Cheryl didn't contact them, to which Cliff replied that Cheryl was a liar.
Despite the recent tragedy, Cliff and his wife decided to attend the first annual Taste of Riverdale, in which Penelope had a brief, physical altercation with Alice Cooper. Appalled that Alice would dare print Jason's autopsy results in the Register, Penelope slapped Alice on sight and then became very emotional recalling what had happened to her son. Cliff held her and tried to calm her down, calling her "sweetheart". 
The Blossoms received a surprise visit from Sheriff Keller as he conducted his investigation into Jason's murder. Everyone in town had their own suspicions, neighbor suspecting neighbor. During that time, Riverdale bared a striking resemblance to Salem, during the witch trials. 
As Cliff and Penelope made their way to the main room, where Jason's memorial would be held, they informed Sheriff Keller of their plan to narrow down the suspects in the murder of their son. Cliff explained that the list consisted of people that hold grudges against the Blossoms, many of them being from the founding families. Someone in Riverdale killed Jason, he was sure of it. That night, the Blossom family were joined by Veronica Lodge at diner, there, Cliff informed Veronica of the town's founding, that being from the maple industry, this is also where Sweetwater River got it's name from. He proceeded to make a snide comment about her father, who was currently imprisoned. He assumed that the experience must've been difficult for Veronica, having to watch her father dragged out in handcuffs, to which she agreed. The day of the memorial, he had a brief run-in with Hal Cooper, the two had an exchange of words, and went separate ways. 
After learning of Polly Cooper's escape from the Sisters of Quiet Mercy, the Blossoms orchestrated a search party, however, witch hunt would appear to be the more accurate term. With the news of Polly's recent escape moving throughout town, Cliff wondered if it was possible that Polly had escaped before, maybe on the day that Jason was murdered. He then learned that Polly was pregnant with Jason's child during a press conference held by Alice Cooper. Cliff, Penelope, and Cheryl arranged a meeting with Betty at Pop's Chock'lit Shoppe hoping to further discuss their plans for Polly and the baby. He and Penelope were relieved to learn that they were safe, he went on to tell Betty that money would never be a problem for them.
In an effort to halt the construction by Andrews Construction on the new land development, Cliff hired Fred Andrews' crew the day of, offering them a bigger job and two years work. Later that day, he was confronted by Fred for his devious actions, to which he explained wasn't personal. The land once belonged to his family as they founded their maple empire on it, they were in the process of reacquiring the land but the mysterious buyer stole it right from under them. Cliff couldn't go after the mysterious buyer, so he went after Fred instead, the way Fred's boss did his secret deals led Cliff to believe that he had a limited amount of funds. It's a great plan with the exception of him bleeding Fred out in the process, which Cliff was unbothered by. The next day, he and Penelope greeted Polly at the front door as she had decided to stay at Thronhill.
Thicker than blood, more precious than oil, Riverdale's largest business had been maple syrup since the town's founding, and the Blossoms had been in control of the lucrative trade since the beginning. Via a brief flashback, the Blossoms, Jason included, sipped from glasses of their delicious syrup in a similar fashion that one would enjoy fine wine. Alas, with the heir to the family business dead, many people wondered who would inherit the family business in Jason's place, it certainly would not be Cheryl. All the while having to watch their backs from attack within their own ranks as the board of trustees came to Riverdale in the wake of Jason's death. The next day, as the Blossoms family tree tapping ceremony commenced, Cliff read from a scroll, saying "Nearly 100 years ago, Grandfather Blossom came to this sacred maple grove. The annual tapping ceremony portends each season's bounty."
While he had performed the ceremony many times in his life time, and so did Jason when he came of age, that year, Cheryl would perform the ceremony in his place. Thankfully, it went off without a hitch as Cheryl tapped the tree perfectly, which both Cliff and Penelope were seemingly proud of her for. After the group photo, Cliff took the opportunity to have a quick chat with Archie as he was Cheryl's escort, in which he admitted to being taken back at Cheryl's choice, considering how Cliff and Fred did not have the best relationship. He reminded Archie that his family could be quite generous to the right people, which is why Cliff wanted him to attend the banquet they were hosting later that week at the Belmont Lodge as Cheryl's escort. Archie was not too sure he should attend since he was an Andrews, banquets were not their type of scenes, but this was precisely why Cliff wanted him to come, people like the Andrews were the bedrock of their town.
The following day, as Cliff had Archie suited by his tailor for the banquet, Archie wondered if the Blossoms could help his father's company instead of helping him get into the music program, as Andrews construction was having a difficult time. Cliff was impressed by Archie's loyalty towards his father, he could not image that Jason would have ever done the same for him, it spoke to Archie's character. However, they had already given Brandenburg Music Academy a call, and they were excited to meet Archie, but as a sign of good faith, Cliff agreed to sit down with Archie and discuss what he could do for Fred. During the banquet, Cliff talked about how they had been tested that year as a town, a company and a family, and while it was not Jason's hand that staked the maple, it was the hand of hope. After his speech, Cliff informed Archie that he had decided to help Fred after all Archie had done for them, the Andrews had a bright future with them.
Although Cheryl was an intelligent girl, the trustees were skeptical of having her play an active role in the company, but if someone with Archie's character were at her side to temper her erratic behavior, they would be more inclined to let her in. Essentially, it was about painting a picture, having Archie with Cheryl created an appealing picture. After his talk with Archie, that subsequently led to a dispute with Cheryl, Cliff chatted with Penelope outside the lounge, while the trustees were satisfied, uncle Bedford kept asking about the drive-in land. Cliff was close to regaining the land, and Hermione Lodge would crumble in the process, but they never imagined that she would be so resourceful, maybe Cliff should have sent her to jail, instead of Hiram, Penelope said, unaware that Archie was listening. As the trustees left town the following day, Cliff assured Penelope that they weren't out of the woods just yet.
Cliff is a middle-aged man of average build, with pale skin, hazel eyes and red hair. These are traits found in several members of the Blossom family. With Clifford being the wealthy man that he is, his wardrobe unquestionably reflects this, often wearing well tailored suits.
- "Chapter One: The River's Edge"
- "Chapter Two: A Touch of Evil"
- "Chapter Three: Body Double"
- "Chapter Four: The Last Picture Show"
- "Chapter Five: Heart of Darkness"
- "Chapter Seven: In a Lonely Place"
- "Chapter Eight: The Outsiders"
- "Chapter Nine: La Grande Illusion"
- See also: Category:Images of Cliff Blossom
- ↑ Aguirre-Sacasa, Roberto (writer) & Krieger, Lee Toland (director) (January 26, 2017). "Chapter One: The River's Edge". Riverdale. Season 1. Episode 1. The CW.
- ↑ Aguirre-Sacasa, Roberto (writer) & Krieger, Lee Toland (director) (February 2, 2017). "Chapter Two: A Touch of Evil". Riverdale. Season 1. Episode 2. The CW.
- ↑ Lawrence, Yolonda E. (writer) & Krieger, Lee Toland (director) (February 9, 2017). "Chapter Three: Body Double". Riverdale. Season 1. Episode 3. The CW.
- ↑ Grassi, Michael (writer) & Piznarski, Mark (director) (February 16, 2017). "Chapter Four: The Last Picture Show". Riverdale. Season 1. Episode 4. The CW.
- ↑ Maxwell, Ross (writer) & Warn, Jesse (director) (February 23, 2017). "Chapter Five: Heart of Darkness". Riverdale. Season 1. Episode 5. The CW.
- ↑ Allen, Aaron (writer) & Anders, Allison (director) (March 9, 2017). "Chapter Seven: In a Lonely Place". Riverdale. Season 1. Episode 7. The CW.
- ↑ Cohen, Julia (writer) & Katzenberg, David (director) (March 30, 2017). "Chapter Eight: The Outsiders". Riverdale. Season 1. Episode 8. The CW.
- ↑ DeWille, James (writer) & Rose, Lee (director) (April 6, 2017). "Chapter Nine: La Grande Illusion". Riverdale. Season 1. Episode 9. The CW.