Lately, in watching X-men: Evolution, I've noticed some similarities between the voices of the characters to some well-known English voice seiyuu's. Out of sheer curiosity, I went and looked up the voice character's histories to compare. The results were hillarious!

Christopher Grey (the voice of Lance Alvers/Avalance) also played Mistique temporarily during the series.

Brotherhood: ...
Pietro: Bad...images...
Lance: *quickly* Moving on!

Andrew Francis (the voice of the ever-lovable Bobby Drake/Iceman) also did the voices for Escaflowne's Dilandou, Monster Rancher's Genki, and the infamous Cardcaptors' Zachary.

Jubilee: How appropriate. A bunch of hyperactive mischeif-makers and story tellers.
Bobby: Who? ...me?

Kirby Morrow (the voice of Scott Summers/Cyclops) is also known as DBZ's Goku, Inuyasha's Miroku,

Brotherhood: *snicker*
Pietro: Ladies and Gentlemen...the leader of the X-geeks.
Lance: Didn't know you had it in you, Summers!

Gundam Wing's Trowa Barton, and Escaflowne's Van Fanel.

Pietro: It's always the quiet ones...
Scott: *red in the face* THAT DOES IT! *starts blasting the brotherhood*
Brotherhood: *laugh as they dodge red lazer beams*

Samuel Vincent (the voice of the resident genius, Forge) also does voice work as Hamtaro's Dexter, Ed, Edd, and Eddy's Double-D, Monster Rancher's Hare, and Cardcaptors' Julian/Yue.

Forge: What d'ya know? It fits!

He also played Lance Alvers in The X-Impulse.

Venus Terza (the voice of Jean Grey) also does Project A-ko's A-ko, Ranma 1/2's Ranma-chan (Female Ranma),

Evan: Dude, what's up with all the Red-heads?

Gundam Wing's Lady Une, and Escaflowne's Princess Millerna.

Jean: See? I AM a Princess!
Others: *groan*
Lance: Anybody else worried about that whole schitzophrenic thing?

Brad Swaile (*swoons* the voice of the Fuzzy Dude, Kurt Wagner/Nightcrawler) is WELL known for voicing Gundam Wing's Quatre, Pilot Candidate's Ertz, Mobile Suit Gundam's Amuro Ray, DBZ's Teenage Gohan (that one REALLY surprised me), Zoid's Harry Champ, Hamtaro's Maxwell, Inuyasha's Nabunaga, and Ranma 1/2's Mousse.

Kitty: I'm seeing a pattern here...
Kurt: I say it before, und I say it again...chicks dig the Fuzzy Dude!

Richard Cox (the voice of Pietro Maximoff/Quicksilver) also plays the roles of Zoid's Bit Cloud, Ranma 1/2's Ranma Satome, and Inuyahsa's Inuyasha.

Evan: *rolling on the floor with laughter* It fits! It fits
Lance: I have to admit, they DO have the same color hair...and the same attitude...
Pietro: *zips up to Jean, puts one arm around her* So I guess this makes me your better half, right?
Jean: *telekenetically throws Pietro against the nearest wall*

Maggie Blue O'Hara (the voice of Kathryn "Kitty" Pryde/Shadowcat) is infamously known for her work as Cardcaptors's Madison Taylor, Monster Rancher's Holly, DBZ's Bulma, and Gundam Wing: Endless Waltz's Mariemaia Kushrenada.

Rogue: Huh, that figures. Same personalities and everything
Kitty: And just what is THAT supposed to mean?!

Michael Dobson (the voice of Fred Dukes/Blob) also does the voices of Escaflowne's Dryden, Gundam Wing's Duke Dermail, Digimon's Grandfathers of both TK *and* Cody, Teenage Mutant Ninja Turtles's Leonardo, Digimon's Azulogmon, and DBZ's Kami.

Fred: I AM GOD! MUAHAHAHAHA!

Noel Fisher (the voice of Todd Tolensky/Toad) also plays Hamtaro's Stan.

Wanda: Ugh...it figures, doesn't it?
Todd: What do you mean, Cuddlebumps?
Wanda: *screams in frustration*

Scott McNeil (the voice of Logan/Wolverine) is also known as--get this--SABERTOOTH!!!

Logan/Sabertooth: WTF?!?!?

Aside from that, he does voices for Monster Rancher's Suezo, DBZ's Piccolo, Inuyasha's Kaga, Monster Rancher's Greywolf, Reboot's Hack and Slash, and Gundam Wing's Duo Maxwell.

Others: *snicker*
Logan: *glare/growl*

Matt Hill (the voice of Alex Masters-Summers/Havok) also plays Cardcaptors' Kero-chan, Tenchi's Tenchi, Ronin Warriors's Ryo of the Wildfire, Teenage Mutant Ninja Turtles's Raphael, and Ranma 1/2's Pantyhose Taro.

Alex: Dude...there's something wrong with this picture...

laughing hysterically* THE IMAGES!!!!!!!