Question: Mystery Mansion is a 1983 family film starring an American actor with extensive work as what?

Context paragraphs:
Yuri Sardarov: Yuri Sardarov (born January 28, 1988) is an American actor and producer.  He has done extensive work in the theater.  Since 2012, he has starred on NBC's "Chicago Fire".  He is the executive producer for "Apex".

Karyam Nissaram: Karyam Nissaram (English: Matter is Simple ) is a 1983 Family Drama Malayalam film written, and directed by Balachandra Menon, starring Balachandra Menon and Prem Nazir along with Lakshmi, Poornima Jayaram, Sukumari, Jalaja, Lalu Alex, Baiju and K P Ummer.  The music is composed by Johnson.  It gives us a glimpse into a Malayali family during the period when their children marry off.  It is mainly focussing on marriage and the fact the problems in marriage are caused by simple matters which individuals due to their ego and other problems make into huge problems.  All family problems can be overcome.The film was a blockbuster of 1983.

Brian Kerwin: Brian Kerwin (born October 25, 1949) is an American actor who has starred in feature films, on Broadway, and done extensive work in television series and movies.

Dallas McKennon: Dallas Raymond McKennon (July 19, 1919 – July 14, 2009), sometimes credited as Dal McKennon, was an American actor, with extensive work as a voice actor, in a career lasting over 50 years.

John Hammond (actor): John Hammond is an American actor.  As a virtual unknown he landed the lead role in the 1982 miniseries "The Blue and the Gray as fictional Virginia war-artist John Gentry, then followed it up with lead role in the 1983 family film "The Prodigal".

Sidney J. Furie: Sidney J. Furie (born February 28, 1933) is a Canadian film director, screenwriter, and producer best known for his extensive work in both British and American cinema between the 1960s and early 1980s.  Like his contemporaries Norman Jewison and Ted Kotcheff, he was one of earliest Canadian directors to achieve mainstream critical and financial success outside their native country at a time when its film industry was virtually nonexistent.  He won a BAFTA Film Award and was nominated for a Palme d'Or for his work on the acclaimed spy thriller "The Ipcress File" starring Michael Caine.

Richard Moll: Charles Richard Moll (born January 13, 1943) is an American actor and voice artist, best known for playing Bull Shannon, the bailiff on the NBC sitcom "Night Court" from 1984 to 1992.  Moll has also done extensive work as a voice actor, typically using his deep voice to portray villainous characters in animation and video games.

Mystery Mansion (1983 film): Mystery Mansion is a 1983 family film directed by David E. Jackson and starring Dal McKennon, Greg Wynne and Randi Brown.

Jiřina Bohdalová: Jiřina Bohdalová (born 3 May 1931 in Prague, Czechoslovakia, now the Czech Republic) is a Czech actress.  She began acting in theatre and film at an early age.  She was accepted to The Theatre Faculty of the Academy of Performing Arts in Prague (DAMU) at her third attempt.  She received an offer from Jan Werich to join the actor's troupe at “Divadlo ABC” theatre which she kindly accepted.  Later on, she performed in many other “City Theatres of Prague” (Městská divadla pražská).  From 1967 to the present day she has a permanent engagement at the “Vinohrady Theatre”.  Bohdalová has done extensive work as a voice actress, especially TV characters in various bed time stories, including “The Fairy-tales from Moss and Fern” (Pohádky z mechu a kapradí, 1968), “The Little Reedman” (Rákosníček, 1976), “The Little Witch” (Malá čarodějnice, 1983), “About the Pixie Racochejl” (O skřítku Racochejlovi, 1997), etc.  She has made numerous appearances in different fairy-tales, short stories, TV films, serials, plays and many programmes of her own.

Richie Campbell (actor): Richard "Richie" Campbell (born 8 February 1982) is a British actor.  He grew up in North London.  He is best known for his comedic turn as local bully "Tyrone" in British film "Anuvahood" and his role of Ndale Kayuni in "Waterloo Road", which airs on BBC One.  Campbell has won a Screen Nation Award for his portrayal of Dominic Hardy in TV show "The Bill".  His work has included Breathless, Mid Morning Matters with Alan Partridge, and recurring roles in "The Silence" and Channel 4 drama "Top Boy".  As a film actor, Campbell has appeared in Wilderness, The Plague, The Firm, Victim, Fast Girls and Get Lucky.  In addition Campbell has done extensive work in West End theatre including, Dirty Butterfly at Young Vic theatre, Lower Ninth at the Donmar Warehouse, Truth and Reconciliation at Royal Court Theatre and in 2013 playing Tom Robinson alongside Robert Sean Leonard as Atticus Fitch in "To Kill A Mockingbird" at Regents Park Open Air Theatre.

Supporting paragraphs: Mystery Mansion (1983 film) Dallas McKennon
Answer: a voice actor