Pictured: Cards Inc. #42

Character file · Original series

Spencer

Sergei · セルゲイ・ルイバコフ

Rival Demolition BoysBlitzkrieg Boys Beyblade: 2000Beyblade: G-RevolutionBakuten Shoot Beyblade (manga)

Bit-beast: Seaborg · Water · Whale
Style: Defense
From: Russian
First seen: First Strike (Beyblade: 2000)

series

episodes on record

Beyblades

special moves

cards across 3 games

Spencer is the tallest and heaviest of the Demolition Boys, and his whale bit-beast Seaborg matches him, flooding the dish with crushing waves that wear an opponent down; in a water stadium the advantage is enormous. He opens the World final against a Kai who has only just come back to the Bladebreakers, and wins it, leaving the team on the back foot. He is quiet nearly throughout and loud only mid-battle, competes hard and does not take losing well — the ideal product of Boris's system. In G-Revolution he trains with Kai and Bryan until he collapses from exhaustion, then helps attack BEGA and loses badly to Garland.

Personality

How They Behave

Quiet almost throughout, and loud when it counts — what he says mid-battle, he says at volume. He competes hard and does not take losing well.

Blader Profile

Spencer, rated

Attack 7/10
Defense 8/10
Stamina 8/10
Technique 6/10
Spirit 6/10

beybladewiki.com editorial rating — based on on-screen performance, not official stats.

A grinder who wins by attrition.

On file

The record

Blading style: Defense
Nationality: Russian
English voice: Peter Cugno
Team: Demolition Boys / Blitzkrieg Boys
Beyblades: Seaborg; Seaborg 2; Seaborg MS
Bit-beast or avatar: Seaborg
First appearance: First Strike (Beyblade: 2000)
Japanese name: セルゲイ・ルイバコフ
Romaji: Serugei Ruibakofu
Occupation: Blader
Gender: Male
First anime appearance: Losing Kai
First manga appearance: Invasion of the Russian Army Corps, Borg!!
Voice (Japanese): Tomokazu Sugita
Voice (English): Peter Cugno

Bit-beast & Beyblades

Seaborg, form by form

Seaborg S1 · ep 48
Seaborg 2

Special moves

Called shots

StramolyuVoda Impact

Story by season

Where the seasons take them

Beyblade (2001)

Demolition Boys

Spencer helps Bryan waylay Max before the finals even start, hauling Draciel away along with the rest of the ambush. His bigger test comes in the tournament's opening round, where he faces a Kai freshly returned to the Bladebreakers; Seaborg's flooding waves wear Dranzer down until Spencer takes the match two rounds to none and claims Dranzer's power for the Demolition Boys. It's the loss that puts Tyson's team on the back foot heading into the rest of the finals, and Spencer, usually the quietest of Boris's bladers, is loud and forceful for exactly as long as the fight lasts.

Beyblade G-Revolution (2003)

Blitzkrieg Boys

Spencer very nearly earns a spot on the Blitzkrieg Boys outright, only for Kai to take the last place on the roster days before the tournament starts. He stays with the team regardless, training alongside Kai and Bryan until the effort collapses him from exhaustion. When Boris returns behind BEGA, Spencer joins Tala and Bryan to march on the league themselves, brushing past BEGA's lower-tier recruits before Garland ends the run — Spencer and Bryan both go down hard, their beyblades wrecked by Apollon's Radiant Thunder, and neither is conscious to see how Tala's own fight turns out.

Briefing

What to know

Trained at Balkov Abbey alongside Tala, Bryan, and Ian.
Tallest member of his team; barely speaks except in battle.
Uses Seaborg, later Seaborg 2, whose bit-beast dominates water-based stadiums.
Defeated Kai in the Beyblade 2000 World Championship finals, taking Dranzer.
Briefly considered for the G-Revolution roster before Kai took the spot.
Fights alongside Tala and Bryan against Boris's BEGA enforcers, then loses badly to Garland.
Manga counterpart uses Seaborg and later the upgraded Seaborg MS.

Notable battles

Max Tate (tag w/ Bryan) - Episode 46 - Win
Kai Hiwatari - Episode 48 - Win
Tala - G-Revolution Episode 07 - Lose
Kai Hiwatari (tag w/ Bryan) - Lose
BEGA Training Squad (tag w/ Tala & Bryan) - G-Revolution Episode 35 - Win
Garland Siebald (tag w/ Bryan) - G-Revolution Episode 35 - Lose

Key episodes

Watch these first

S1E43 Live and Let Kai! Beyblade (2001) · Russian World Championship · Oct 29, 2001
S1E48 Victory in Defeat Beyblade (2001) · Russian World Championship · Dec 3, 2001
S3E35 Pros and Ex-Cons Beyblade G-Revolution (2003) · Rise of BEGA · Sep 1, 2003

Sightings

Episodes they appear in

From our own episode records — the cast, Beyblade and debut lists we compiled show the name here.

Also on record

Where they first appear

Resolved against our own episode records, so the pointer the entry carries as text is a link you can follow.

Beyblade (2001) episode 44: Losing Kai First anime appearance · 2001-11-05

Also on record

Named elsewhere on this site

Tournament reports, testing threads, rules announcements, news and fake or leak checks carrying this name. Each link opens that section with the name already searched for.

Beyblade episode 48 aired in Japan: Victory in Defeat news item · 2001-12-03

Rivals & bonds

Known associates

Kai Hiwatari Spencer beats Kai in the World final's opening round, taking Dranzer from him; years later the two train together ahead of the fight against BEGA.
Tala Bryan Ian Demolition Boys
Boris Balkov Boris trained Spencer to compete hard and take defeat badly, and Spencer later turns on him, joining the fight to bring BEGA down.